The Amp Garage

i have absolutely everything i could ever want or need and then some. if you have any parts needed or wanted. please pm me and i will see if i have them in stock and will be glad to sell at a very reasonable price lower than any parts house i have to get rid of a lot of the excess and would rather s...

So this past month I finally bought out my amp teachers repair shop because he is getting old and has things he wants to do. It consists of a mass of equipment, 6 buildings of parts and every known schematic since 1950. A good bit of the schems do not exist he few them by hand. I will be posting ite...

.does anyone have an idea of why i am losing signal when in triode mode? im out of ideas and would appreciate any ideas that have not been approached

ya not really i breadboarded 2 pre amps so far. both times the tone stack was faulty in some way because i was getting signal until the ts and then it was gone.

it is coming along very nice although i had to put it down for a bit because of a move. a problem i had when i let it go to the side was that i couldnt get output in triode mode. i am running 4.61k screen resistors and im tying that directly to the plate. ive got another thread going for that issue ...

what do you mean pop test?

yes i have tied the screen and plate together and i get no signal on the output. i dont know where its a primary impedance issue a voltage issue a bias issue that is running it into cutoff or what at this point.

no as far as i can tell all connections are correct. but again i do things different and wrong to most so it might be wrong but right to me but connections are grid pin 1 cathode 2,4,8 plate pin 5 and screen pin 7. i just dont understand how the tube can what i assume is going into complete cutoff w...

i have tried both hard wired and toggle. resistors or not and if i run in triode mode i get zero waveform. well ill get a little actions around a mvpd or so. but i think thats more ripple than wave. another thing im curious about is running the 1 meg in line with the screen supply so i run the 1 meg...

some more photos of the schematics

i tried to take the best photos i could of the schems that i drew. more or less i ripped off the power between a fender and a trainwreck. the power amp started as a trainwreck i believe but at this point its something Frankenstein'd and the preamp which i have not fully made functional was taken fro...

i have it set up exactly as in this photo. i also read somewhere that switching to triode mode could cause redplating to some degree soo i upped the neg bias before hand but not to an extreme amt. i think im gonna give it another shot. also, are you saying that when i switch to triode mode i elimina...

be glad to the only thing i have found on cpu to draw schems is diylc i usually do things by hand. is there any freeware for mac that would suite me so i can be precise and thorough?

i have been fiddling with a custom build using all sub mini tubes. i had a friend that lives on the road and he cannot find an amp anywhere that can get down to the volume he wants with the tone he desires. the data sheet for the 5902 shows graphs for connection to triode mode but i have had no such...

Everything I've read talks about resistance of the sides being within 20% the actual Performance of the transformer is decent the voltage between the plates is only off by 1-3 volts. I can live with that as I'm only trying to prove the concept before I have custom wound transformers made.