Post your Solid State pics here

Here is an old block that I build several years ago

2*180rms with dc-protection

th_88025_DSC00019_123_574lo.JPG
th_88030_DSC00022_123_495lo.JPG
th_88036_DSC00024_123_303lo.JPG
th_88042_DSC00030_123_408lo.JPG
th_88053_DSC00031_123_371lo.JPG
th_88065_DSC00032_123_555lo.JPG
th_88070_DSC00033_123_581lo.JPG
th_88084_DSC00027_123_558lo.JPG
th_19851_DSC00029_123_459lo.JPG



th_90791_Shot_0993_122_329lo.jpg
th_90796_Shot_0994_122_489lo.jpg
th_90800_Shot_0995_122_484lo.jpg




Regards
 
My JLH

It looks quite ugly compared to other things in this post, but it really sounds good!

It's my JLH, version "2003 update" (I think that's what it's called)
with CapMult, A970 input T, A733 ccs (maybe not copletely stable), C3421 driver, 15003 output T.
Works at 24V and 1,25A quiescent current.

Made it all by myself, pcb from Eagle and toner transfer, and many parts from wrecked equipment. Very proud.

It took me forever to tame the last buzz, and I should just have followed the "earthing" instructions... :rolleyes:
But since yesterday I have my own class-A, and it is sweet.


Many thanks to diyaudio!!
 

Attachments

  • jlh overall.jpg
    jlh overall.jpg
    92.8 KB · Views: 7,168
My JLH

...and the transformers.

These come from eBay (the guy still sells some of the same).

I would appreciate an opinion about these transformers.

I took them because they were cheap and I use them for my prototypes. They give 19-0-19V and are "labelled" 160VA.
I have them on a separate "piece" and I'll replace them with "better" tranformers as soon as I get a good deal.
Or are these any good?


* * *

Next in the list: build a GEM.

The better of the two (JLH or GEM) will go in a high-WAF enclosure, the other will play music too, but in my own working room.

This JLH is sweet, but I could do with some fuller medium-bass when playing rock; for jazz and classical I can't stop listening!

(My references: an Audio Analolgue Puccini SE and a Creek 4140; my source: Cambridge CD3, which is a sweeeeet 4xTDA1541A; speakers: Opera Platea two-way small columns)
 

Attachments

  • jlh trafos.jpg
    jlh trafos.jpg
    99 KB · Views: 6,503