well I see some huge blocks reserved above so I'll start off for now with brief overview of things soon to manifest for mine.
All parts ordered and waiting to show up, only a few to grab locally.
Everything is in tentative plans only stage so far until it all shows up and actually works/fits in the finished builds, ironed out and trouble free.
Volume potentiometer replacement:
Member T.R.A.N.C.E. pointed out my mistake in thinking they were 100K for some reason.
These are 10k values stock.
I thought I'd try one to see how it reacted. These are hand built.
- Audio Note 100k ohm model 81914.
- ALPS-68580 Blue Velvet 10k ohm
- Will use some stock to be able to keep the on/off function intact for trial builds.
^ the Audio Note and the ALPS do not have the built in switching ( ON/OFF ) sections, and only control the channel volumes.
There should be two points on the circuit traces where those ON/OFF stock volume pot legs would gets soldered into, but will be empty when replacing with the others.
I will use connection wiring soldered to those two trace points and route them to a front mounted mini slider switch or micro metal toggle.
This will require always checking to see the volume is turned right down each time I turn it on.
New Housing:
NOS Soviet themed mod ( this better sound decent or...) = those Soviet New Old Stock capacitors are larger than stock for the same values needed. This requires a new housing for added routing and fitting, as well as any other bulky idea I might use. Perhaps an bigger battery mAh for a further extended time between charging.
Only reasonable case is this one:
http://www.ebay.com/itm/162173794681?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
=74mm by 29mm by 80mm
It keeps the PCB front to rear distance the same ( 80mm ) so the inputs/outputs require no extending and are easy to make holes for in whatever faceplates used,
but adds ~9mm extra height and ~24mm width.
Capacitor Fun:
For dedicated themed units
* the small 10uf apparently have tiny legs so will have to see how a larger set fits.
New Old Stock Soviet caps:
Most electronics back then were manufactured in Military factories, obviously the best went to that, and rest were likely sorted accordingly after.
No real way to tell.
No idea how well they have held up for tolerances by now so some values may be tried in a larger value or some other models may be sourced.
Have some mil-spec silver plated copper wire in case things need serious rerouting
All aluminum oxide electrolytics
1000uf K50-29 axial ( 16v )
200uf K50-16 ( 25v )
100uf K50-29V axial ( 25v )
10uf K50-29 axial ( 16v )
47uf K50-35 ( 63v )
For the following they will use other brand power filter caps to hopefully fit, anything above 10mm wide seems to cause case-fit problems in it's position and most 1000uf audio caps are above that.
Another member might chime in on audio vs low esr ones...
Elna Silmic II:
10uf ( 25v ) = 5mm x 11mm
47uf ( 10v ) = 5mm x 11mm
100uf ( 16v ) = 10mm x 12.5mm
Elna Cerafine:
10uf ( 25v ) = 5mm x 11mm
47uf ( 10v ) = 6.3mm x 11mm
100uf ( 10v ) = 8mm x 11.5mm
Nichicon:
10uf SW ( 16v ) = 4mm x 7mm
47uf KZ ( 10v) = 10mm x 12.5mm
100uf KA ( 16v ) = 5mm x 11mm
Various 1000uf which may or may not fit
Roederstein 16V EKS LL = 10mm x 20mm
Vishay 135 16v = 10mm x 30mm
Nippon /UCC 25v = 10mm x 20mm
Panasonic FC 16v = 10mm x 25mm
Others which may or may not fit
Frako 47uf axial 25v ( german ) = 6mm x 13mm
to be continued...
