Hi S

This is how a Quad S5 should look inside.

So glad you are feeling better.

Have a great Expona

Regards

A12

Finally got round to 2nd group of updates on A12.

Went with Rubycon Caps ( inc PC Boards ones ) and the Mundorf Oil Ali for couplers and Vishal Resistors ( all 3W )

Settled on 580k for shadenfrude link.

In all honesty I am shocked how a handful of Resistors and Capacitors can make such a DRAMATIC DIFFERENCE, it now sounds truly amazing.

Currently listening to John Martyn - Solid Air WOW.

To add to above, I got the A10 on special at £340, spent £80 on parts - so now have a fabulous sounding tube amp ( my first in 60 years ) for £420, quite ridiculous really.

Listening to it now, really does sound good.

Way back in the 80s had really top end gear - Krell, Spectral, AR, Vandersteen, Kiseki, et al.

John

Hi

Finally got round to doing Skunkie mods on my A10 ( now A12 ).

All I need to say is OMG the difference is unbelievable, improved in every aspect especially the BASS !!

Found the 860 ohm to bright so changed that to 680 ohm, might drop down a bit more as still just a tiny bit bright.

Went with TAD rectifier and JJ output tubes, still using as suppled PSvane EL34, must have got a good pair as image is rock solid.

Have JJ E34L and Mundorf caps on order, looking forward to them.

Hello all

I recently found Skunkies Chanel, she’s brilliant, very impressive advice.

Prompted me to get my 1st ever Tube Amp - Reisong A10 ( will wire as per A12 ) starting the mods tomorrow, while I’m at it is it worth changing the power supply Caps on PCB ? Mine are crappy looking Brown ones branded Nippon ?

Also not clear on the bypass caps ( currently little Orange ones ) what to change them for ?

Been in this “ Hobby “ for 60 years and spent far too much money over the years on many “ high end brands “ thought I was happy with my system but now bloody Skunkie has started me off again !!!!!

Let you know the outcome 🤞🏻🤞🏻🤞🏻🤞🏻.

Here is how I'm rocking with Skunkie Designs.

Used lowest-priced parts to build. Sounds very good. First time ever electronic build. First to tube listening other than mom's old am table radio. My setup is the Tascam Profesional cd-400u , with am/fm tuner ,sd, sdhc,

usb, bluetooth playback connected to Skunkie Designs Color pre-amp with ge 12au7 's nos tubes and 

Electo-harmonix 6ca4 new rectifier tube. Into the 

Fossi audio v3 stereo amp to Cervin Vega E715 speakers 400 watts RMS with a a frequency response of 26Hz-20kHz and a sensitivity of 102 dB @ 2.83V. Very clean and crisp with a good raspy kinda sound. I've got the input pre-amp pot's at max. Ouput pre-amp pot turned down to adjustment for the Fossi audio v3 stereo amp. 

I keep the Fossi volume about 12 o'clock 

Finished doing Stephe's mod to my A10. Fired it up and it works, but my left channel is not as loud as the right. I swapped the EL34's to an Apex matched pair thinking it may be the stock Psvane tubes, but it didn't make a difference.

I'm thinking maybe I have the wrong value of resistor somewhere in the left circuit?

Thanks for any help!

I have a Vincent SA-31 and re-capped and replaced the tubes with some Russian 6N16B-V's and it sounds fantastic! I have quite a few left over so I am wondering if/how I can utilize them in a modified version of the Color Preamp? I bought a Hammond 262EE6 transformer (120V Sec@ 93ma + 6.3@1.2A) hoping I could use it for this project. Any advice on how the schematic could be modified for their use would be much appreciated!

Hello all and new to the group.

I am very fortunate to have an old friend of the family starting to teach me in building amps. Walter, my teacher, owner of SAR Labs in Winnipeg. Well known for over 60 years in the audio industry. Designing and hand building all kinds of equipment. Walter’s main signature design are mosfet amps.

The pictures shows my second point to point wiring project, a design of Walter’s. It was fun to design and great to listen too. Still tweaking with tubes and feedback loop in the design. Sorry, I don’t have permission to share his schematic. I probably can’t answer any really technical questions either.

Hope the link works.

https://photos.google.com/album/AF1QipOalLloleMJGZ_6EfOR-TXI8AmtAg8vA_ptL-bn