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Hi Folks, my modified Crest CA-18 went out with a bang. Three or four almost gunshot blasts, I thought some electrolytics exploded. My fatal mistake may have been to install slower fans to reduce noise as the rack is located in the listening room. There have been rare occasions when the...

Hi Folks, I have sick Bryston 4B on my hands and the recommended replacement output devices ( by a respected member of another forum) are the MJ21193 / 94 transistors. I can't for the life of me see any difference between those and our old reliable MJ21195 / 95 units. Would there be any...

This is my old clunker PL700 which has been annoying neighbours since 1976. I had to rob the power switch for a 700B with a failed switch (on the left) Our friend "oldphaser" supplied me with the microswitch version but warned about the clearance issue with an original 700.

Hi Folks, I thought this would be straight forward...but it's a Phase Linear! My 700 series II (WOPL'ed) has the VU led's at zero for the first second when the amp is powered up. Then they move a few notches above zero. I read somewhere that the filter cap goes bad on the back of the meter...

Hi Folks; As usual, getting into projects way over my head. Hoping this old dog can still learn a few tricks. Can anyone suggest a reasonably priced RF generator for FM stereo tuner alignment? Been watching some youtube videos on the procedure---real edge-of-your seat stuff! I saw some...

Hi Folks; Does anyone have a suggestion for an economical capacitor tester? I am looking at Fluke meters with this function but this nice ones wind up costing a fortune! Can some testers check caps in circuit?

Hi Folks, I am doing some fiddling around on tube amplifiers, guitar amps mostly. I'm using a Leader LBO 516 old-school CRT screen scope. It specs max input voltage 400 V ( AC + DC ). As you know, many tube amps have B+ voltages higher than this. I have a 10:1 probe but doubt...

Hi Folks; Just wanted to say Hi to everyone that helped me restore my pair of Clair Bros 700 II's. I found these 3 (almost 3) 700B's and could not resist! As you can see, one is missing VU meters and I'm concerned that this may be a death sentence, for "parting out" only. Would VU...

Hi Folks; Sorry to jump in but can anyone direct me to an un-biased bluetooth speaker comparison? I'm looking for best sound under $200 CDN ($150 ish USD) Thanks, Peter in Canada I have a strong suspicion that 'googling' so far has lead me to a lot of sponsored sites..

Hi Folks; I just picked up these Clair Bros Phase's. (not working) The first amp is a quasi, 2nd is a full complimentary.