Get one man, I've got a super lead and a 2204 and the master is my baby, its smoother and more controlled plus they're loud but still manageable unlike the non masters
Can it be the case with my 1981 100w JCM800 super bass (active eq)? Only a low noise ecc83S lowered the noise (what it seams to be a 60hz noise). I checked the board, components, grounds, solders, no matter what i have tried, the only thing to help was an ecc83S.
Any true DC voltage is AC ground… I know this but it’s kinda like the square root of negative 1 for me … One of the things I really like about Lyle’s approach is that he considers every alternative to fixing a problem. He’s never mentioned elevating the heater center tap “ground” to the best of my knowledge, but here it solves a problem.
Why would NOT using a bypass capacitor cause more hum on the second gain stage amplifying the heater noise? I would think if you used a bypass capacitor which increases the gain stage would amplify the heater noise more. Correct me if I misunderstood what you were saying
Every time I hear a JCM800 I want one, the more I hear them the more I want one.
Get one man, I've got a super lead and a 2204 and the master is my baby, its smoother and more controlled plus they're loud but still manageable unlike the non masters
Nice fix on the hum RCA red book 1945 very good call.
Sounding sweet.
At least it’s 50 watts and not a hundred watts. Outside of band practice with a loud drummer, is there any utility to these monsters anymore?
Can it be the case with my 1981 100w JCM800 super bass (active eq)?
Only a low noise ecc83S lowered the noise (what it seams to be a 60hz noise). I checked the board, components, grounds, solders, no matter what i have tried, the only thing to help was an ecc83S.
Any true DC voltage is AC ground… I know this but it’s kinda like the square root of negative 1 for me …
One of the things I really like about Lyle’s approach is that he considers every alternative to fixing a problem. He’s never mentioned elevating the heater center tap “ground” to the best of my knowledge, but here it solves a problem.
Had the same noise problem with a 2210: elevating the heater centertab to +40V DC let the amp accept any 12ax7 in V1 position....
Yeah, such a simple wonderful trick.
Sounds great now though
How much gain..?
All of it
But I love the gain. Ah ah, ah ah, ahhh.
Why would NOT using a bypass capacitor cause more hum on the second gain stage amplifying the heater noise? I would think if you used a bypass capacitor which increases the gain stage would amplify the heater noise more. Correct me if I misunderstood what you were saying
Because it would smooth out any ripple on the cathode caused by it's proximity to the AC on the heaters for that particular cathode.
FIRST COMMENT!
You sir... are KING!