Photo Gallery

[jlsem]

Here's a sweet little 45 amp for my television. Made entirely of Mil-surplus parts including OPT. Managed to fit an LCLC power supply on that small chassis. 6X5GT + E86C + 45.

 

[jlsem]

And the set-up in my bedroom. Wife loves it - Home Theater rules!

 

[kmtang]

Very nice looking 45 amp.

I believe you are only running mono with your TV. You should go for the stereo one.

Good thing is that your wife love it.

Johnny

 

[kianbach]

Hi Kianbach,


Surely, the last stage capacitor would have big impact on the sound effect. You may try to use the 22-33uF oil and polypoperlene capacitors. You would notice a big differences between electrolytic, oil, and polyproperlene types. Of course, if your pocket in deep enough, you may try to use those silver-in-oil capacitor which I believe it will be the BEST.


Have fun,

Johnny

Hi Johnny,I've been given a pair of Dubilier visconol 2uF paper block capacitors.Do you think these would sound better than the 220uF electros after the reg?
Or should I go for larger values?

 

[philipbarrett]

Maybe this belongs in it's own thread so forgive me...

I got my ebay special PSU today and...what is this component? Primitive voltage regulator, nitro-methonic discomboobalator? It is wired parallel to the output of what appears to be the B+ transformer. The circuit then goes through the usual cap-choke-cap to an 11 pin I/O socket.

Thanks in advance for any help

 

[philipbarrett]

FYI this is the whole enchilada...

 

[planet10]

Those pics are awfully small... got some bigger ones?

dave

 

[philipbarrett]

I was trying to get around the "too big file" message;try this one...

 

[planet10]

I was trying to get around the "too big file" message;try this one...

The blue things are selinium rectifiers... very unreliable. Replace right away (IN4007s will do at a minimum)

dave

 

[philipbarrett]

Thanks - there's some figuring out to do with this PSU, it's stamped Motorola 1962 and includes a relay activated on/off circuit. I'll take it slow with a variac!

 

[kmtang]

Hi Kianbach,

2uF is just too small. Try to get some large size oil or polyproplyene ones.


Johnny

 

[kianbach]

What about 60uF motor run like the oil tanks in my psu?

 

[kmtang]

60uF is a bit too much. The sound become rather bulky. Of course, you may try it out.

Johnny

 

[kianbach]

I've also got a pair of 25uF GE polyprop motor run caps,oil-filled.I might give them a go later....

 

[kmtang]

Hi Kianbach,

Go for it. Let us know if you feel the differences.

Johnny

 

[pim]

A small push-pull amplifier based on http://www.the-planet.org/Shishido.html

 

[pim]

Another view...

 

[pim]

...and one more...

 

[pim]

...and the last one.

 

[planet10]

amplifier based on

I ran across that one before. An interesting amp.

what changes? How does it sound? OPT primary impedance? Power?

dave