need some help please!

[icefloe01]

folks this is one of the resistors that was taken out. hope this helps. i dont know if they both are the same or not.

That would be a 100 Ohm 5% flameproof carbon comp resistor. Flameproof is indicated by the yellow stripe. If the pieces from the other one looked fairly similar to that one (and I suspect that it did) then my guess is that they were definitely the filament balancing resistors. If it's about a half inch long, it's a half watt resistor, 1/4 inch would be 1/4 watt. Are there any others of that value resistor in pairs like these were on the board anywhere?

[medicman]

i cant find any others. i wander where one could find a picture of the circuit board on this amp. so i should be okay going with a pair of 100 ohm 1/2 watt.

[icefloe01]

i cant find any others. i wander where one could find a picture of the circuit board on this amp. so i should be okay going with a pair of 100 ohm 1/2 watt.

If there are not any other pairs of 100 ohm resistors together like that, then I would say Erik (Euthymia) was correct in his assessment of them both being the 100 ohm resistors. If you can find some 1 Watts that will fit without the leads having to be bent funny I would use that, else the half watt should be fine.

Eric.

[medicman]

circuit board pics

here is some pics. i had to remove it for some strange reason and now i cant remember wich way the arrow faced.

[icefloe01]

here is some pics. i had to remove it for some strange reason and now i cant remember wich way the arrow faced.

It's pretty hard to tell from these pics. Could you angle the camera and to see up under the lip of the amp to the other end of the cap that is there? Also see if your camera has a "Macro" function so up close pics will be in better focus. The macro function is usually indicated with a flower icon...

Eric.

[medicman]

more pictures

here is some more for you. it laid right next to the other one.

[icefloe01]

here is some more for you. it laid right next to the other one.

Um, wow. Okay, the best question for me to ask here is; Do you have a multimeter?

[medicman]

circuit board pics

yes sir i do.

[icefloe01]

yes sir i do.

Ok cool. Oh, and you don't have to call me sir. Ok, first thing, make absolutely sure that cap is discharged. You'll need about a 1500 ohm 10 to 25 watt resistor. Attach some alligator clips to your meter leads and clip them onto the resistor leads. Be careful here. Now take your meter leads and touch them to the cap leads. This will let the cap safely drain through the resistor if there is still any residual charge in it. Keep the leads on there about 10 seconds just to be sure. Ok, now setup your meter for resistance measurement. Check from the cap that's still in the circuit to the leads where you clipped the other one out. Put one meter lead on one lead of the cap still in the board and check to the leads where you clipped the other cap out. One combination will read shorted and one will read a temporary short and slowly build up resistance. The consistant short is what you're interested in. Now you also have to figure out which cap has one lead tied to ground. Let me know what you find.

Eric.

[52 Bill]

This amp has had a lot of questionable work done to it.

So far it seems to be missing the two 100 ohm filament resistors and from what I can tell, one of the filter caps in the totem stack is also missing.

The entire amp needs to be gone over in order to find out what was changed, "fixed" and what has been left out. While it's not impossible for you to fix this with enough help here, it seems to me that it is beyond the scope of your abilities to get this one working on your own. Do you have a friend with more experience that could help you with this amp?

[icefloe01]

This amp has had a lot of questionable work done to it.

So far it seems to be missing the two 100 ohm filament resistors and from what I can tell, one of the filter caps in the totem stack is also missing.

The entire amp needs to be gone over in order to find out what was changed, "fixed" and what has been left out. While it's not impossible for you to fix this with enough help here, it seems to me that it is beyond the scope of your abilities to get this one working on your own. Do you have a friend with more experience that could help you with this amp?

He admitted to pulling the cap himself but could remember which way it should go back in. As for the two filament resistors, I think they got cooked. And yeah, that amp is not to pretty on the inside. Plus the load balancing resistors for the totem stack look like they've gotten a bit toasty too...

Eric.

[52 Bill]

He admitted to pulling the cap himself but could remember which way it should go back in.

Sorry, I didn't know that you were communicating with him off the board.

[icefloe01]

Sorry, I didn't know that you were communicating with him off the board.

No apology neccessary. Plus I meant to say he could not remember which way the cap should go back. But I agree, if there are any further problems beyond this he'll really need to take it to a qualified repair center.

Eric.

[medicman]

semiconductor pictures

i'm not sure what it is but after the amp is on for about a min or so it gets hot. and i still have no heater voltage to the tubes.

[icefloe01]

i'm not sure what it is but after the amp is on for about a min or so it gets hot. and i still have no heater voltage to the tubes.

That's Q1 in the schematic and it definitely sounds shorted. But it has nothing to do with the heaters. Sorry to say this but at this point your best bet is to take to a repair shop as this amp has multiple problems.

Sorry,
Eric.