Here's the cold truth as I see it, no sugar coating. It's a damn shame you replaced all those caps and resistors. You just devalued that amp significantly and produced no result. There was no reason to do that work. You are shooting in the dark rather than concentrating on the most apparent problem...
Yes JJ... i rewired the green wires going at the bulb and on to pin 2 and 7 of the 6l6 as before... I called Hammond this morning to inquire about the orange PT wire (shield), not knowing if i should solder to chassis as a ground or leave it heatshrinked. He told me to do either, but best to ground ...
Against my better judgment, i wired the new power tranny, and, the bias is now at -45 with room to play on both sides... But... :roll: The rectifryer is the only tube's lit...bulb is also in the dark...:oops: Some more Googling is in order... :roll: :wink: As a side note... Steve Landry at Hammond t...
http://www.schematicheaven.com/fenderamps/tremolux_ab763_schem.pdf You are keeping with a 22k in the 22k location, yes? You are grounding the + side of the cap, yes? I would have expected the voltage to get weaker when you moved to the 1meg, not stronger. Yes JJ, but i put in a new 22K. I've got al...
Ok lads! Tonight i took all the old carbon resistors out and put in all new carbon film resistors everywhere. Ceramic caps were changed for Mallory film caps and Silver Mica. I also got my new tranny today and i was about to proceed to wire it up and decided to come and check on you guys... Good thi...
I put in a new diode, 25uf 50v electrolytic, and a 220R 1w. After smoking the 220R 1w resistor, i realized my mistake and put in a 220K 1w and got a reading of -5.60. Tried a 330K uf 1w and got -6.30 on my Volt DC. Tried a 1M 1w and still got -6.00. That is still far from -45 I should get the new tr...
-5.5vdc bias is way to weak. This is why the tubes are close to exploding. The scheme calls for a target of -45volts. You can read the dc volts on the grid while turning the bias control to see the range available. Check this after fixing the circuit before you put any power tubes back in. If it we...
With the output tubes removed, what is the DC voltage on the output tube sockets’ grid terminals (pin 5) ? (measuring each separately.) Is it negative or positive voltage? With the output tubes removed, what is the A C voltage on the same output tube sockets’ grid terminals? (measuring each separat...