wonfor

Gerber etc here https://seca.freeforums.net/thread/317/twin-linear-psu-tracking-input

A Baby A Class HP Amp/Pre FOC. This little beast is a little complex but I suspect you can do it. The Gerber will be available on my SECA data store. Gerbers here:--https://seca.freeforums.net/thread/312/baby-class-amp-pre-foc

https://seca.freeforums.net/thread/2/seca-kits-wonfor?page=3&scrollTo=789

Claymore come in six version of issues. Iss 1 With Hitachi H-Pak FET's, these become obsolete. Fitted with a MC stage I was not happy with so scraped it. Iss 2 With Toshiba MOS FET's but still no MC stage Iss 3 As Iss but with a plug in feature for MC stage Iss 4 Upgraded to a better Toshiba MOS...

Please enjoy making this the Gerber File and Circuit are FOC and for fun. Try on a CD or digital input. This version I did in 1977 and uses leaded component for ease of build. Gerber Files here:- https://seca.freeforums.net/thread/311/reverse-riaa-pcb-circuit-foc Circuit Diagram PCB Layout...

Enjoy build FOC Gerber files here: https://seca.freeforums.net/board/1/general-discussion

Find some music you like, I was brought up with the "Ink Spots" by my aunt Vi. Here is a link to them and many others, please enjoy them. https://archive.org/details/audio_music

As promised here is a link to the Reverse RIAA cheapish to make but improves digital sound. Those with MM input that are now never used can use them again oh and a added bonus no record scratches to be heard. Unless record with digital lies. https://seca.freeforums.net/thread/301/rev-riaa-pink-fish

On this forum data from Fred. I hope he does more tests. https://seca.freeforums.net/thread/300/power-cables

We have a lot in common vorsprung, durch ...I built class A Amps with my good friend Colin Wonfor TOCA (touch of class A) Seca (single ended class A) look him up the man is a genius his list of acomplishments is truly astounding ...this is my set up at home my single ended Amps run at 1200 w...

I hate digital lies, reason a good analogue design needs no upgrade, and if designed well lasts for years. The poorly design week engineering skill that go into Software based hardware is disgusting. MicroCrap I find the worse it is always wanting to update, my PC, it was OK on XP. Then some...

Top left PCB convert Balance to un-Balance,Top right PCB is the twin bridge PSU with 88,000uF Caps and the 12V supply for the Balance PCB and the ON LED drive. The bottom two PCB's are the power Amp, they will be running 35W P-P Class A. NOTE:- The balance PCB can have a variable gain control...

I am going to be building a pair of mono blocks using the latest iteration, V3.1, of Colin Wonfor’s SECA PCBs. I am aiming for the maximum output power of 40 wpc. I am currently getting quotes for toroids. Each mono block will require a heatsink rated at 0.1 degrees C/W or better. That’s a...

NEW SECA PCB Power can be set from 14W - 40W depending on heatsink. The PCB's are £60 each. Please contact Mr Brown on https://www.abcaudio.biz/ The PCB is now leaded components and should be easy to assemble. Down load cct here https://seca.freeforums.net/thread/274/new-seca-kit-easy-build