Results 1 to 30 of 30

Thread: Last silly question

  1. #1
    Member
    Join Date
    Jun 2017
    Location
    England
    Posts
    102
    Thumbs Up/Down
    Received: 0/0
    Given: 0/0

    Last silly question

    Just want to make sure I've got this the right way round ?Click image for larger version. 

Name:	20180217_144540.jpg 
Views:	61 
Size:	2.88 MB 
ID:	47182

    Probably the most embarrassing question I've asked!!

    0 Not allowed! Not allowed!

  2. #2
    Old Timer Tom Phillips's Avatar
    Join Date
    Jun 2006
    Location
    California, USA
    Posts
    3,468
    Thumbs Up/Down
    Received: 13/0
    Given: 10/0
    Scott,
    The wiring hookup you depict will work fine
    Some other relevant information to keep in mind is:
    * The switch you are using is a single Pole Single Throw unit. (SPST)
    * It is is not polarized so it will also work if you reverse the hookup of the brown and black wires. The "ON/OFF" label is just provided for convenience and optional use.
    * One thing to plan for is the physical orientation of the switch when you mount it on your panel. That is, decide if you want the switch to be ON when the toggle handle is flipped up or down or even to one side. This depends on the function you are controlling with the switch. For a power switch most people would choose it to be ON when the toggle is up of course.
    Cheers,
    Tom

    0 Not allowed! Not allowed!

  3. #3
    Member
    Join Date
    Jun 2017
    Location
    England
    Posts
    102
    Thumbs Up/Down
    Received: 0/0
    Given: 0/0
    I think that's what confused me? The switch seems to have slightly less resistance moving from on to off so I thought it would be better that way round

    0 Not allowed! Not allowed!

  4. #4
    Member
    Join Date
    Jun 2017
    Location
    England
    Posts
    102
    Thumbs Up/Down
    Received: 0/0
    Given: 0/0
    Although now i look at it again it's the same both ways so it must have been the way I was holding it !!

    0 Not allowed! Not allowed!

  5. #5
    Old Timer Tom Phillips's Avatar
    Join Date
    Jun 2006
    Location
    California, USA
    Posts
    3,468
    Thumbs Up/Down
    Received: 13/0
    Given: 10/0
    Quote Originally Posted by Jarvini View Post
    I think that's what confused me? The switch seems to have slightly less resistance moving from on to off so I thought it would be better that way round
    That describes a faulty switch.
    You should measure essentially zero resistance in one position and essentially infinite resistance in the other position of the switch handle.
    For any given position of the handle the resistance reading between the terminals should not change when you reverse the meter lead connections to the switch terminals

    0 Not allowed! Not allowed!

  6. #6
    Member
    Join Date
    Jun 2017
    Location
    England
    Posts
    102
    Thumbs Up/Down
    Received: 0/0
    Given: 0/0
    Sorry ignore the resistance part I meant physical resistance not electrical and after looking again it's the same

    0 Not allowed! Not allowed!

  7. #7
    Senior Member Malcolm Irving's Avatar
    Join Date
    Dec 2014
    Location
    Derbyshire
    Posts
    364
    Thumbs Up/Down
    Received: 0/0
    Given: 5/0
    Quote Originally Posted by Tom Phillips View Post
    ... For a power switch most people would choose it to be ON when the toggle is up of course. ...
    That's the convention in the USA, but in UK the convention is the other way - down for on. Doesn't really mater - we are used to Fender amps etc. - just thought I'd mention it.

    Click image for larger version. 

Name:	1959hw_front.jpg 
Views:	28 
Size:	96.5 KB 
ID:	47185

    0 Not allowed! Not allowed!
    Last edited by Malcolm Irving; 02-17-2018 at 04:46 PM.

  8. #8
    Old Timer
    Join Date
    Sep 2011
    Location
    Pace, FL
    Posts
    1,485
    Thumbs Up/Down
    Received: 7/0
    Given: 4/0
    Quote Originally Posted by Malcolm Irving View Post
    That's the convention in the USA, but in UK the convention is the other way - down for on. Doesn't really mater - we are used to Fender amps etc. - just thought I'd mention it.

    Click image for larger version. 

Name:	1959hw_front.jpg 
Views:	28 
Size:	96.5 KB 
ID:	47185
    Maybe that's why the standby switches always get me . It's different based on where the amps is from.

    nosaj

    0 Not allowed! Not allowed!

  9. #9
    Old Timer Tom Phillips's Avatar
    Join Date
    Jun 2006
    Location
    California, USA
    Posts
    3,468
    Thumbs Up/Down
    Received: 13/0
    Given: 10/0
    Yep. After I posted I thought that might come up. Especially for a chassis that is used both in combo and head amps with just a front panel change. Same reason that some amps have the guitar inputs on the left vs. the right side.

    Standby discussions can get complicated.
    "I was on/in standby"
    "I turned the standby off"
    etc.

    0 Not allowed! Not allowed!

  10. #10
    Old Timer
    Join Date
    May 2006
    Location
    Chill-Ville, VA
    Posts
    2,455
    Thumbs Up/Down
    Received: 14/0
    Given: 30/1
    Maybe instead of labels like "Play" & "Standby" and "On" & "Off" we should use
    "Boring" & "Awesome!" and "Happy Neighbors" & "Cops Are Here!"

    Justin

    0 Not allowed! Not allowed!
    "... If an older Boogie and classic Marshall had a (clearly illegitimate) child and you baked it in an oven set to clown shit crazy." - Chuck H. -
    "When receiving a shock I emit a strange loud high pitched girlish squeak." - Alex R -
    "All I ever managed to do with that amp was... kill small rodents within a 50 yard radius of my practice building." - Tone Meister -

  11. #11
    Member
    Join Date
    Jun 2017
    Location
    England
    Posts
    102
    Thumbs Up/Down
    Received: 0/0
    Given: 0/0
    I'm from the uk and prefer up as on and down as off

    0 Not allowed! Not allowed!

  12. #12
    Supporting Member Jazz P Bass's Avatar
    Join Date
    Dec 2008
    Location
    Wernersville, PA
    Posts
    12,203
    Thumbs Up/Down
    Received: 3/0
    Given: 4/0
    I can't remember what newer amp it was but the standby switch was labeled "Standby" & "Standback"

    0 Not allowed! Not allowed!

  13. #13
    Supporting Member
    Join Date
    May 2006
    Location
    Staffordshire UK
    Posts
    3,360
    Thumbs Up/Down
    Received: 7/0
    Given: 10/0
    Quote Originally Posted by Malcolm Irving View Post
    That's the convention in the USA, but in UK the convention is the other way - down for on. Doesn't really mater - we are used to Fender amps etc. - just thought I'd mention it.

    Click image for larger version. 

Name:	1959hw_front.jpg 
Views:	28 
Size:	96.5 KB 
ID:	47185
    I'm thinking that Marshall just copied that aspect of the Bassman (ie 'on' is with the switch flipped towards the bottom of the chassis) along with everything else, but then orientated the chassis in a head cab 'open side down', whereas Fender moved from 'open side vertical' with the tweed era to 'open side up' of the browns, BF etc.

    0 Not allowed! Not allowed!

  14. #14
    Member
    Join Date
    Jun 2017
    Location
    England
    Posts
    102
    Thumbs Up/Down
    Received: 0/0
    Given: 0/0
    I might post some pretty dumb questions but at least I give you all something to debate

    0 Not allowed! Not allowed!

  15. #15
    Lifetime Member Enzo's Avatar
    Join Date
    May 2006
    Location
    Lansing, Michigan, USA
    Posts
    29,860
    Thumbs Up/Down
    Received: 66/1
    Given: 0/0
    I don't know about "copy", but I have never seen an amp where the power switch flips one way and the standby switch flips the other to operate. Whether it is facing up or down, it is always both in the ON position to play.

    In the USA, we generally think UP for on. The wall switch for my ceiling light goes up for on.

    0 Not allowed! Not allowed!
    Education is what you're left with after you have forgotten what you have learned.

  16. #16
    Bent Member Chuck H's Avatar
    Join Date
    May 2007
    Location
    pacific north west
    Posts
    13,032
    Thumbs Up/Down
    Received: 26/0
    Given: 33/0
    Quote Originally Posted by Malcolm Irving View Post
    That's the convention in the USA, but in UK the convention is the other way - down for on. Doesn't really mater - we are used to Fender amps etc. - just thought I'd mention it.

    Click image for larger version. 

Name:	1959hw_front.jpg 
Views:	28 
Size:	96.5 KB 
ID:	47185
    Yeah, but they also drive on the left side of the road. And walk backwards (I only heard this last part, not confirmed).

    0 Not allowed! Not allowed!
    Last edited by Chuck H; 02-18-2018 at 01:51 AM.
    "I'm just going to perform a bit more scientific investigation, turn it up to 11 and rip of the knob." überfuzz

    "...less ear-friendly but handy for jazz." Leo_Gnardo

    "A pedal, any kind, will not make a Guitar player more dangerous than he already is." J M Fahey

    "If you build it, it will hum..." Justin Thomas

  17. #17
    Bent Member Chuck H's Avatar
    Join Date
    May 2007
    Location
    pacific north west
    Posts
    13,032
    Thumbs Up/Down
    Received: 26/0
    Given: 33/0
    Quote Originally Posted by Enzo View Post
    I don't know about "copy", but I have never seen an amp where the power switch flips one way and the standby switch flips the other to operate. Whether it is facing up or down, it is always both in the ON position to play.

    In the USA, we generally think UP for on. The wall switch for my ceiling light goes up for on.
    My ocd kicks in when someone changes one of my dual switch lights. You know, where there's a switch at either end of the room and when one is one way it means the other is opposite. If I never use one of the switches I arrange so up is on for the one I use. Then when someone changes my arrangement I have to walk over and flip the other switch so my world is right again

    0 Not allowed! Not allowed!
    "I'm just going to perform a bit more scientific investigation, turn it up to 11 and rip of the knob." überfuzz

    "...less ear-friendly but handy for jazz." Leo_Gnardo

    "A pedal, any kind, will not make a Guitar player more dangerous than he already is." J M Fahey

    "If you build it, it will hum..." Justin Thomas

  18. #18
    Lifetime Member Enzo's Avatar
    Join Date
    May 2006
    Location
    Lansing, Michigan, USA
    Posts
    29,860
    Thumbs Up/Down
    Received: 66/1
    Given: 0/0
    I remember when I was tiny, my dad finished the attic, and the stairs were newly wired with a light switch at top and bottom. My sister and I would man the switch at each end and "fight" for control. She'd turn it on and I'd turn it off. Then I tried to anticipate her flip so I flipped at the same time, and she had "no effect". I found it hilarious, she got pissed off. Tee hee.

    0 Not allowed! Not allowed!
    Education is what you're left with after you have forgotten what you have learned.

  19. #19
    Old Timer Tom Phillips's Avatar
    Join Date
    Jun 2006
    Location
    California, USA
    Posts
    3,468
    Thumbs Up/Down
    Received: 13/0
    Given: 10/0
    I have always found it interesting that although there are only two switches involved they call it a "three-way switch" in electrician language.

    0 Not allowed! Not allowed!

  20. #20
    Lifetime Member Enzo's Avatar
    Join Date
    May 2006
    Location
    Lansing, Michigan, USA
    Posts
    29,860
    Thumbs Up/Down
    Received: 66/1
    Given: 0/0
    Maybe on through one path, on through the other path, and off?

    0 Not allowed! Not allowed!
    Education is what you're left with after you have forgotten what you have learned.

  21. #21
    Senior Member Malcolm Irving's Avatar
    Join Date
    Dec 2014
    Location
    Derbyshire
    Posts
    364
    Thumbs Up/Down
    Received: 0/0
    Given: 5/0
    Quote Originally Posted by Chuck H View Post
    ... they also drive on the left side of the road. And walk backwards ...
    Yes. Walking backwards qualifies for a modest grant from the Ministry of Silly Walks.

    0 Not allowed! Not allowed!

  22. #22
    Supporting Member
    Join Date
    Dec 2009
    Location
    UK
    Posts
    3,248
    Thumbs Up/Down
    Received: 10/0
    Given: 2/0
    Just a point on mains switching; best practice (at least in the UK) is to use a DPDT switch to switch both the live and the neutral. You cannot guarantee that the polarity of a mains socket or IEC cable is not reversed and a double-pole switch guarantees that the live will always be switched whatever way round the incoming mains is wired. Also, it's good practice to shroud all mains-side terminals using either heat-shrink sleeves, terminal covers or proper moulded flexible fuse and switch shrouds. This is to prevent accidental contact with the mains should the amp be worked on under power.

    0 Not allowed! Not allowed!

  23. #23
    Supporting Member
    Join Date
    May 2006
    Location
    Staffordshire UK
    Posts
    3,360
    Thumbs Up/Down
    Received: 7/0
    Given: 10/0
    Quote Originally Posted by Tom Phillips View Post
    I have always found it interesting that although there are only two switches involved they call it a "three-way switch" in electrician language.
    It's called 2 way switching over here.
    And toggle switches are unusual in electrical installations, rocker switches are the norm.

    0 Not allowed! Not allowed!

  24. #24
    Old Timer olddawg's Avatar
    Join Date
    Dec 2007
    Location
    Carlsbad, CA and Kona, HI
    Posts
    2,607
    Thumbs Up/Down
    Received: 8/0
    Given: 0/0
    With a vertically mounted chassis (or a wall mounted light switch) I would assume that best practice would be off in the down position. It would seem much more probable to accidentally turn something off... which is better than accidentally turning something on for hours, days, years, and burning the place down. Especially back in the day.

    0 Not allowed! Not allowed!

  25. #25
    don't forget the joker g1's Avatar
    Join Date
    Feb 2010
    Location
    Canada, somewhere north of Fargo
    Posts
    9,827
    Thumbs Up/Down
    Received: 49/0
    Given: 67/0
    Back in the day we had those push button wall switches.

    Click image for larger version. 

Name:	939px-Push_Button_Light_Switch.jpg 
Views:	14 
Size:	108.3 KB 
ID:	47221

    0 Not allowed! Not allowed!
    Certified Dotard

  26. #26
    Better Tone thru Mathematics bob p's Avatar
    Join Date
    May 2006
    Location
    Chicago, USA
    Posts
    4,908
    Thumbs Up/Down
    Received: 37/0
    Given: 0/0
    Quote Originally Posted by Malcolm Irving View Post
    Yes. Walking backwards qualifies for a modest grant from the Ministry of Silly Walks.

    0 Not allowed! Not allowed!
    "Stand back, I'm holding a calculator." - chinrest

    "I happen to have an original 1955 Stratocaster! The neck and body have been replaced with top quality Warmoth parts, I upgraded the hardware and put in custom, hand wound pickups. It's fabulous. There's nothing like that vintage tone or owning an original." - Chuck H

  27. #27
    Member
    Join Date
    Jun 2011
    Location
    Pittsburgh PA
    Posts
    91
    Thumbs Up/Down
    Received: 0/0
    Given: 0/0
    Quote Originally Posted by Mick Bailey View Post
    accidental contact with the mains should the amp be worked on under power.
    The only time I've ever been shocked while working on an amp was exactly this. Amp was off, but the cable was still plugged into the IEC connector and I just about jumped out of my skin. Heat shrinking all the mains connections is a very good idea that I will probably implement soon.

    0 Not allowed! Not allowed!

  28. #28
    Member
    Join Date
    Jul 2008
    Location
    Seattle Washigton USA
    Posts
    60
    Thumbs Up/Down
    Received: 0/0
    Given: 0/0
    Of course Marshall wires theirs as on when down. But they drive on the wrong side of the road as well.......

    0 Not allowed! Not allowed!

  29. #29
    Senior Member Malcolm Irving's Avatar
    Join Date
    Dec 2014
    Location
    Derbyshire
    Posts
    364
    Thumbs Up/Down
    Received: 0/0
    Given: 5/0
    Quote Originally Posted by olddawg View Post
    ... I would assume that best practice would be off in the down position. It would seem much more probable to accidentally turn something off... which is better than accidentally turning something on ...
    I agree. I've sometimes wondered why we have 'down for on' light switches. Here's an interesting quote from Wikipedia:

    "The direction which represents "on" also varies by country. In the US and Canada, it is usual for the "on" position of a toggle switch to be "up", whereas in many other countries such as the UK, Ireland, Australia, and New Zealand it is "down". (In multiway switching, the correspondence between a single switch's state and whether lights are on or off depends on the state of the other switch[es] in the circuit.)"

    0 Not allowed! Not allowed!

  30. #30
    Member
    Join Date
    Jul 2008
    Location
    Seattle Washigton USA
    Posts
    60
    Thumbs Up/Down
    Received: 0/0
    Given: 0/0
    Well, I think I know why Marshall does it their way. Since they copied a tweed bassman for their first amps, the switch is in the same orientation as to the other controls and chassis. When you rotate the chassis 90 degrees it is now down.

    0 Not allowed! Not allowed!

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Replies: 11
    Last Post: 07-24-2017, 07:20 AM
  2. Silly Fender Schematic Question
    By Pryde in forum Maintenance, Troubleshooting & Repair
    Replies: 10
    Last Post: 11-30-2014, 07:06 PM
  3. Very silly capacitor question...
    By EFK in forum Theory & Design
    Replies: 6
    Last Post: 02-19-2011, 12:53 PM
  4. silly question about standby switch
    By vince76 in forum Maintenance, Troubleshooting & Repair
    Replies: 6
    Last Post: 07-31-2009, 05:30 PM
  5. silly grounding question
    By EETStudent in forum Maintenance, Troubleshooting & Repair
    Replies: 3
    Last Post: 02-18-2008, 06:05 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •