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robertgalka

Responses from robertgalka

2 different Bedini 150/150 Mk II Amps
I turned up the bias so the transistors are about 125 f and the fins are about 105 f. I'm not sure how high I can go? I read that it should run hot enough where you can only hold your hand on the fins for about 5-10 seconds. I have a long way to g... 
2 different Bedini 150/150 Mk II Amps
My tech repaired my 250/250, he said it was the input differential amps, whatever that means? He had to replace four transistors that were matched.I've been using it for a while and it runs really cool, maybe 105 degrees fahrenheit on one side, an... 
2 different Bedini 150/150 Mk II Amps
Are filter caps the same as power supply caps? I only see eight capacitors on this amp, four 2" and four little ones on the boards. It looks pretty simple to me. 
2 different Bedini 150/150 Mk II Amps
Thanks, hopefully my tech can fix it first. I hooked it up to an old woofer and it has a pretty good hum also.I did a quick read at DIYaudio and they sell a speaker protection circuit along with the soft start. I know I bought something like that ... 
2 different Bedini 150/150 Mk II Amps
my 250/250 mkii looks entirely different inside from the standard model. I upgraded the power supply to dual separate power supplies. All the transistors were upgraded to much better newer more linear transistors. And I mean all.  The internal...