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  1. Replies
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    Wow thanks, sounds like great advice. Iíll take...

    Wow thanks, sounds like great advice.
    Iíll take it
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    Need Help dialing in my amp

    What are some of the tweaks or things I should check to dial in a 5e5a build? I want to make the low end tight and punchy and just overall more responsive?
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    Mesa finally got back to me and they have the...

    Mesa finally got back to me and they have the inductor I need👍🏻
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    Iím using my cell phone and donít see the icons🤪....

    Iím using my cell phone and donít see the icons🤪. I guess Iíll have to get to a computer
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    359

    Not sure how to post a picture I Donít see an...

    Not sure how to post a picture I Donít see an attachment
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    No luck getting Mesa on the phone The inductor...

    No luck getting Mesa on the phone
    The inductor was intermittent when I chopstcked the area the lead finally broke off I unsoldered it and was able to dig out the some of the remaining lead and...
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    Rocket 44 contour inductor

    I found a bad inductor in the contour part of the circuit but canít find a exact replacement
    Itís a Falco 519068 The schematic shows a .068h coil......
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    Retensioned the socket and reflowed the socket...

    Retensioned the socket and reflowed the socket pins one of them is still not shiny there is less craclking but still there V2 makes alot noise when chopstick it........
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    My Bad the volt measurements were without the...

    My Bad the volt measurements were without the power tubes in....Pin9 is 320vdc and pin 7 is 400vdc the functioning but is very crackily and distorted on the contour channelive swapped the preamp...
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    I see it now I downloaded a schematic......The...

    I see it now I downloaded a schematic......The amp's power tubes are redplating though I have the followimng voltages and could use some guidance troubleshooting pin 2 -11vdc pin 7 483vdc and pin 9...
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    548

    mesa rocket 44 help

    I have no heater VAC on v1 and v2 but have it on v3 and v4............
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    mesa rocket 44 help

    I have no heater VAC on v1 and v2 but have it on v3 and v4............
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    Help!!

    I need to get this amp back to the tone beast it was...Ö..
    What should I check next?
    Ever since I put the 200ma choke in This amp has sounded sterile at best lacking punch and chime
    How do I know...
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    Volume is fine and I have plenty of power.... ...

    Volume is fine and I have plenty of power....
    What kind of sound response would a weak bias ((29ma)) give?
    Like I said I replaced the 56k resistor with a 47k resistor and noticed an improvement in...
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    👍🏻

    👍🏻
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    1,266

    What milliamperes would be ideal for TAD 6L6...

    What milliamperes would be ideal for TAD 6L6 WGCís?
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    1,266

    The choke that came with the kit was a mojo 777...

    The choke that came with the kit was a mojo 777 Which I was told is undersized and would burn up if I was going with the Fender 5e5a schematic.......so I was advised to use a Hammond T193H 5henry...
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    Bias too low 5e5a?

    Recently completed a mojotone kit
    I upgraded the circuit board to a Hoffman and installed a bigger 200 ma choke also installed 1 ohm resistors on pin 1,8 to ground on the power tube sockets
    I have...
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    Mojotone 5f6a discrepancies......

    Their schematic looks different than Leo's
    Specifically the location of the choke and I only see 1 rectifier tube. What's gives?
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    Thank you!

    Not sure why the fuse blew initially but..........
    I'm powered up and passing audio with the light bulb limiter
    I'll try it without the limiter tomorrow
    but I'd like to thank everyone for their...
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    My bad .... .58v is the drop across R58 (not...

    My bad .... .58v is the drop across R58 (not the volt reading):confused:
    Q13 meters ok
    back to work
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    Read -43.6vdc on Q12's collector and Q13's base...

    Read -43.6vdc on Q12's collector and Q13's base
    schematic has .58v as the correct volt reading

    The resistor on Q12's collector R58 47ohm FP res meters ok i mas. -43.6 volts across it

    Q13...
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    "There are *two* red wires, measure from each of...

    "There are *two* red wires, measure from each of them to ground (chassis)"

    33vac both to grd


    "There are *two* orange wires, measure from each of them to ground (chassis)"

    18vac both to grd
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    I totally missed the center tap on the...

    I totally missed the center tap on the xformer......doh!
    I'll go and take some proper meas
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    resistors tested ok so did the zener diodes are...

    resistors tested ok so did the zener diodes
    are the high voltage ratings normal...... only have the power section wired up
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    took some volt readings starting at the input of...

    took some volt readings starting at the input of the xformer
    I'm coming off a standard 120v(124v reading) outlet with a 75w lightbulb limiter
    which drops me down to 106vac feeding the input of the...
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    TRANSISTOR TESTING...

    TRANSISTOR TESTING

    PV 400BH

    I better get busy......................
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    Thanks Bill I'll take some readings tonight

    Thanks Bill
    I'll take some readings tonight
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