06-07-2017, 05:19 PM
(This post was last modified: 06-07-2017, 05:57 PM by Fred Rocker.)
(06-07-2017, 06:59 AM)Hangman Wrote: it should be 470 ohm, at least 2 watts.
Adding screen resistors will just help with the stability of the amplifier. without screen resistors the power tubes have a tendency to start oscillating at really high (out of the range of hearing) frequencies. The screen resistors help to eliminate that problem, at the cost of about 1-2 watts of output at full power (not noticeable)
take a picture of the guts of the amp and I will point out which ones are for the vibrato.
Thank you. This is the only photo I have handy at the moment as the amp has been reassembled. I hope the caps are visible in this picture. I'd also like some advice onadding the grounded cable.I didn't have a problem installing the grounded cable in my reverberocket or my Gemini one, but this one has a standby switch and I'm a little confused. thanks again Hangman.let me know if you need more photos.
(06-07-2017, 05:19 PM)Fred Rocker Wrote:(06-07-2017, 06:59 AM)Hangman Wrote: it should be 470 ohm, at least 2 watts.
Adding screen resistors will just help with the stability of the amplifier. without screen resistors the power tubes have a tendency to start oscillating at really high (out of the range of hearing) frequencies. The screen resistors help to eliminate that problem, at the cost of about 1-2 watts of output at full power (not noticeable)
take a picture of the guts of the amp and I will point out which ones are for the vibrato.
Thank you. This is the only photo I have handy at the moment as the amp has been reassembled. I hope the caps are visible in this picture. I'd also like some advice onadding the grounded cable.I didn't have a problem installing the grounded cable in my reverberocket or my Gemini one, but this one has a standby switch and I'm a little confused. thanks again Hangman.let me know if you need more photos.