Info re Realistic SA 150 Amp
- Thread starter Jack Lord
- Start date
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They sold for $59.95 in 1985. The 25 Watts may be the power that it consumed from the wall but even that seems a bit high. I have never seen the ratings on them but they were more like 2 to 3 watts per channel. The could drive a set of small efficient bookshelf speakers. There was a matching AM/FM tuner that also sold for $59.95. Considering what they sold for, they were not bad. Not great, but not bad either.
I can scan the catalog page next week at work if you want to see it. There are no specs listed and it doesn't say much else either.
I can scan the catalog page next week at work if you want to see it. There are no specs listed and it doesn't say much else either.
Detailman
Addicted to tweaking
I picked up a SA175 which is probably it's bigger brother, at a thrift about 6mos. ago.
Actually it performs quite well driving a two way diy speaker set. Seems to have pretty good punch and the low end is surprisingly good for a small unit.
I am pretty impressed by the phono stage. All in all a decent little unit.
As it turns out I had the tuner that was a match for the 150 in the garage for a couple of years. Picked up one time when a thrift was changing locales and had a $5 a bag sale. Can't remember what else I put in the bag!!!!!!!!!
They work well together and don't take up much space.
Just thought I'd chime in.
Actually it performs quite well driving a two way diy speaker set. Seems to have pretty good punch and the low end is surprisingly good for a small unit.
I am pretty impressed by the phono stage. All in all a decent little unit.
As it turns out I had the tuner that was a match for the 150 in the garage for a couple of years. Picked up one time when a thrift was changing locales and had a $5 a bag sale. Can't remember what else I put in the bag!!!!!!!!!
They work well together and don't take up much space.
Just thought I'd chime in.
ha1156w
Active Member
Ran across a schematic of these guys somewhere on the net once. About 3 watts on a good day. Used plain old TO-92 transistors for outputs, with one driver stage, and one preamp stage. I looked over the circuit trying to see what they used for a RIAA EQ amp. Answer -- none. The Ceramic/Magnetic switch on the back does nothing more than change the loading impedance of the phono input. You get no EQ compensation for the magnetic cartridge. Ceramics of course have their own curve.....the higher the frequency, the lower the output, approximating the RIAA curve enough to be passable to the general public.
Detailman
Addicted to tweaking
ha1156w said:
Thanks for that info. I had mine apart when I first got it to clean it up but I'm not real technical and couldn't identify which stage was which.
But overall in actual usage it sounds pretty good to my ears, and it's only about the size of two cigarette cartons stacked on top of each other.
Think I got the amp and a 6 record set for $4.
Detailman
Ya, Im resurrecting an old thread - but just for FYI as this came up in a google search...
The SA150 is powered by the sanyo LA-4440 stereo amp chip and is 6wpc 2-8ohm (really Id be scared below 4) You can rewire it to be a 19W bridge.
And it has a robust MM section patterned after the countless MM phono pre-amps RS used to sell for $20 or so.
Its a step up form the SA102 of which I have done tonnes of. I had done some TM150s (the matching tuner) - wish I had one in stock to pair this with...
$3 of mouser parts and these are good as new.
The SA150 is powered by the sanyo LA-4440 stereo amp chip and is 6wpc 2-8ohm (really Id be scared below 4) You can rewire it to be a 19W bridge.
And it has a robust MM section patterned after the countless MM phono pre-amps RS used to sell for $20 or so.
Its a step up form the SA102 of which I have done tonnes of. I had done some TM150s (the matching tuner) - wish I had one in stock to pair this with...
$3 of mouser parts and these are good as new.
Splatter Pak
High-End Scrounger
With a bit of impedance adjustment, it might make a good headphone amp.
Mannyyyyyyy
New Member
I'm pretty new to all this stuff and recently came across this little amp. How would one adjust the impedance?
ChopperChas
Super Member
How do these SA-150's work as a headphone amp? Enough juice to push a pair of pretty inefficient headphones to decent volume, without distorting?
FYI, I had an SA-102/TM-102 combo for a while. It drives a pair a minimus-7's just fine. Gave the combo to a friend who was using a crappy bluetooth speaker for her phone. Was a huge upgrade for her. HUGE. She was amazed by how much better it sounded.
I never tried that SA-102 out with my hard-to-drive Audio Technica headphones... and I wonder if there's attenuation in the circuit for the SA-150.
Charles.
FYI, I had an SA-102/TM-102 combo for a while. It drives a pair a minimus-7's just fine. Gave the combo to a friend who was using a crappy bluetooth speaker for her phone. Was a huge upgrade for her. HUGE. She was amazed by how much better it sounded.
I never tried that SA-102 out with my hard-to-drive Audio Technica headphones... and I wonder if there's attenuation in the circuit for the SA-150.
Charles.
likebike23
Addicted Member
Yes, I've done it. The turntable would go into the phono of the SA150 then the use the tape out into one of your receiver or amp's line level inputs.
