| audio, gear, sony, vintage | 12 comments

Another vintage Sony receiver that I couldn't pass up. It didn't require much work at all, just a good cleaning and one burned out bulb. Unfortunately I couldn't find much information on this model.

Another vintage Sony receiver came into my possession lately. This one is an earlier model compared to the TA-F45 I previously posted about, as you can probably tell from the size and woodgrain style. I've been having extremely bad luck lately when it comes to tracking down any kind of technical specs for stuff I've purchased. This receiver falls under the same category of the unknown.

I know it entered production some time in the late 1970s and manufactured as late 1981. I read that it's rated at only 28 watts per channel, but after testing it, it honestly sounds quite a bit more powerful. I came to this conclusion by comparing it to my Marantz 2230 which is only 30 watts per channel, but this receiver seems to be able to drive my speakers significantly easier.

Not much work was required other than a good dusting (the inside was thick with it) and the usual cleaning of pots and switches. I also needed to replace a single lamp. Luckily, I had a spare one handy from a previous project that fit the size and rating of the original. Here's the inside:

Pretty spacious and looks easy to service, if needed. I found the angled tuner bits kind of interesting. This model has something called a "servo lock" tuner, which (as far as I can tell) only gives you a better visual clue as to when you are locked on a station. The word "servo" makes me think that it's supposed to physically lock onto a station with a motor of some kind, but it seems to work the same as any other analog tuner I've used. Maybe I'll look into it a bit more. Turns out that there is an electronic circuit that locks the station once you get close enough to the center frequency, so there is in fact a bit of extra magic going on.


Beautiful specimen! I have the flagship of that line, the STR-V55. You can see a picture at the bottom of my post here: http://thedestitutedeveloper.blogspot.com/2014/01/…

While I don't have a service manual for the STR-V25, I do have the Sony promotional material for the line. If you'd like I could send you a scan. It's a fun read for the buzzword bingo if nothing else.

I'd like to see those, if it's not a big deal to scan. Thanks!

I just got this one in for testing. I've got the manuals and promotional materials as well. Purchased December 1981.

I've had one of these in my posession for about 20 years, given to me by a friend, his father bought it new and had it on a shelf in the garage for god knows how long.

I have a Realistic LAB-340 turntable hooked up to it. I've been using them now for only a few months. I was playing the turntable through a large Sony MHC-GX570XM bookshelf stereo until I brought home a great pair of Kenwood JL-535 speakers from a thrift shop recently.

Anyway, when I first set it all up, I was only getting sound out of one side of the receiver so had both speakers hooked up to one side. After using it a few weeks I thought I'd figure out which side was bad so i could get it fixed. But low and behold, it was all good! :) it then seemed to take an excessive amount of time to tur on but that seems ok now too.

So I'm happy with it...just would like to get a better tur table now.

On a side note I dragged home a nice Denon AVR-2700 with remote last week for $12.99 from the same thrift shop. Unfortunately, I'm not even nearly equipped to full test it :/ it looks like it was well taken care of.

I greet you with great pleasure, i am looking for brochure or promotional material about STR-V55 , STR-V35 etc. please share me a scanned copy of your brochures or promotional material, my email is pinedaee@hotmail.com

Thank you

Eduardo E. Pineda

did anyone find anything on these v 25's

I just picked up a STR-V35 for $10. It seems to work fine but there's a long lag between turning it on and actually hearing anything. Does this amp need to "warm up"? Or does something need to be replaced? I turn on the amp and it can be 5-15 minutes before music starts playing. The amp is on and powered up. Thanks for your help!

That's not good Steve. Typically amps & receivers work almost instantaneously, or sometimes after just a few seconds after an audible click (the protection relay kicking in).

Nice unit Jeff. Little late but.....http://www.hifiengine.com has specs for most models and brands newer and old. They have service manuals for this stereo and many others. For some models they have owners manuals and supplements. They required a login to download but registration was really simple.

I have Somy STR V55, love it but looking for a remote for it. Does one exist ? Any help is appreciated- Thank You

I recently found one of these at my locale recyclers. The protection circuit was preventing it from coming on but I was able to get it going by removing the large filter caps and cleaning all the old glue that Sony put around the the 6800 uf filter caps. This glue becomes conductive over time and cause's everything around it to short out. I unfortunately broke one of the snubber caps around the rectifier trying to get rid of the glue that had actually caused corrosion on the legs of some components. I just replaced all four caps. This is a good sounding amp.

My first receiver, bought new in 1980 when my pops finally caved in a bout me my first hi-fi. I'm 49 now, but my memories are still etched deep with this little honey. Great "feel" to all of the controls, fit and finish was impressive for a modest unit. Would love to track one down and use it in a second system one day.