kevin gilmore

whats the total length, and the thread size. I assume m3? length of thread, and length of the head, and diameter of the head? should be easy to find a hex screw the same size, then slot it in a mill as far as the srm600 disaster, the green things replaced .1uf caps i think, 2 in the middle, and 3 along the outside edge. You can buy parts to put this back to original. And same thing with the doubled resistors that are the plate loads. (black things, 2 in series) Those caps are on the power supply lines, and would never change the sound in any way. another clueless idiot. This may have been done by duncan7 who is an utter and complete moron.

pictures of the screws you want please.

suggest you remove the current limit transistors, and absolutely the correct heatsinks which are about 3 times the dissipation of the ones you used. use thermal grease on the fqpf8n80c, mount directly to heatsink with metal screws.

i'm pretty sure the only difference is the position of the center mounting hole

I posted kgsshvampv15mini and kgssmvampv16mini

fqpf8n80c is an insulated part and goes directly on the heatsink and with a metal screw. power supply runs a lot hotter if the unregulated voltage is too high due to the transformer voltage.

seen a bunch of the ones on the left, every one tests as a darlington of about 30 volts if you got them from dalbani, or people associated with them, definitely fakes

if its for the kgst boards you want the machined ones also from parts connexion you just don't use the chassis strap

Sure looks like a 220V pin. 220V and 230V are the same thing.

unlike a lot of amps, the dynahi will work into a dead short if necessary but if you want, build and install the protector board

The failure mode is that the resistors open up, the outputs go to -350V, the resulting bias gets close to 900, and makes the headphones very unhappy.

yep

its supersymmetry, and the 5k resistors are part of the feedback. if you go with fets you can multiply both Rf and Ri by 10 to increase the input impedance. really does not matter for this. definitely does matter for the input impedance for the ubal to bal converter.

try doubling the values of the compensation caps

yep

in balanced mode the gain is Rf/Ri *2 you don't want to change the 5k input resistors, so change the feedback resistors. Unlikely the compensation cap needs to be changed

the pot by the led's is the input section offset pot. was thinking about a different board. you can probably get away with 18ma per output transistor.

when sales of tle ll2t drop to zero. but he is still going to have to do a major redesign to get that to happen

you pull the opamps, and start with all the pots in the center. the pot in the middle of the board, you adjust so that the outputs are centered around zero. Then you adjust each other pot to bring that output to zero. then you put the opamps back in.

now where have I heard that one before?

gfi outlets will not work without a real ground. they work by measuring differential current.

that depends on whether the output is true balanced or ground referenced. true balanced may cause interesting dc level issues releated to common mode.

should work from +/-400 to +/-550

if your water pipes are copper, they are usable as a ground.

reduce the gain of the amplifier by lowering the feedback resistors