The Amp Garage

Could be to reduce hum in the output stage me thinks. Wonder what the real voltages are at the cathode and screen.

Tilly, the screens are fed from the PS rail, imo. The 47k connected to the cathode should create a current loop and feed some ripple into the cathode as well?

Aren't tantalums prone to service calls?

Great info thanks

Lindz, those do look great for therice you are offering. I'm in...

Could you post a summary of what you need?

I.e., minimum of four? plates, max width, height, 300dpi? graphic in what format...etc?

Great posts. If you have the patience to design and build an amp, one can dedicate themselves to breathing and exercise. I do yoga and try to work out with heavy weight at least three times a week. I feel worse when i stop. At mid 40s i might be a younger guy here but kids job and life still get in ...

I changed both the mid and bass caps, and put a series cap on a pusull pot to shift the mids. I had a slope switch but am using a standard 100k.

Unfortunately right now i don't recall the exact values of my ts. I'll try to open it up tonight or this week.

Mine is 335 plates and around 320 screens...

I changed the TS to not make it so bassy. Also changed some cc's as well as the bypass cap on the first stage.

Nooooooooo! What a let down joining FB was after having been on amp forums for years. Just full of all the BS that used to get emailed. Couldn't agree more. Gee look at meeeeeee! I have +780 friends! More than you even though you have more in the Congo, I have more friends in Zimbabwe and one of th...

OT...maybe ten pages of replies warrants a separate effects pedals forum?

Take one of your amps and a pencil and draw teh schematic for it. Then check to make sure it is right. That is a semester of learning right there.

Decko beautiful. Just beautiful. You should be extra proud especially if this is first try!

vibrato, OuputMagParVsSer.png shows two frequency response plots. The green plot is for the Naylor configuration, C1=470pF and R6 = 560k , while the blue plot is for the other type, C1=470pF and R6=500Meg. The 500Meg essentially creates an open from on side of the resistor to the other. It is essent...

I'm going to define distortion as what happens to your clean signal when its amplitude exceeds the amount of available headroom in your amp. I would disagree with this but this is all opinion... Distortion (IMO) is inevitable and always present. Your ears will distort a sound wave, so this can be a...

tsutt, the Z stroke is probably not enough after a holder and tool overhang. Yes, Lefty, what mill do you have? I'm jealous!