Sent some info. But wondering if your tweeter still functions ;-)

Sorry for several months passing before an update, but I was waiting on someone else.

I ended up dropping the amplifier off at a well regarded shop locally to have it looked at. The company I work for sends him assorted items to repair so I figured it would be worth a shot.

It took him about 3 months to finally look at it and fix it. It looks like he replaced TR25 and TR30. Both replacements are Toshiba branded of the same part numbers.

He said it was fixed so I picked it up. Upon getting it home and connecting it I've found it is not fixed.... sigh.

The amplifier doesn't roast the emitter resistors anymore, and the green light stays illuminated when it has an input. There is no output though. The only speaker than makes any audible noise is the tweeter, using the high level inputs, with my receiver driving a +15dB (max) volume into the Penta amplifier. Even then its barely discernible as the music selection I had playing when I hold my ear directly to the tweeter.

I tried the RCA input with the same results.

Oddly though if I connect or disconnect the RCA input while the amplifier is powered on I get a VERY strong HUM through all drivers as is to be expected when only the center prong of the RCA is connected to any other amplifier. It seems the amplifier is capable of amplifying the hell out of that signal....

Well after a year and a half I finally was able to recover my amplifier from the shop I'd left it with. What an absolute nightmare.

After paying them for the botched repair and bringing it back they said they would get it working. One excuse after another it just never happened.

Looking at the amp as its been returned to me I can honestly say I don't see any evidence they did any further work on it.

Now I'm in the same situation as so long ago, with a non functioning amplifier. The wife has pretty much had it with the non functional Penta's in the bedroom so I either need to get this unit repaired and into service... or get rid of the Pentas as it.

Anyone have a suggestion as to who I could mail this off to for proper repairs?

Send it over.

Hi,

Wondering how your project turned out?

Are you in the US?

John  in London ON CANADA