"Dave" wrote in message
. ..
I have just re-capped the power supply capacitors in a DX-40 with 40uf 450
VDC Aluminum Electrolytics from NTE Electronics in New Jersey.

I have noticeable hum on the carrier. Measuring the ripple voltage with a
10 Megohm ac coupled meter shows 2.3+ volts [average/rms ...
non-sinusoidal] on the 600 vdc line and 1.2 volts [average/rms ...
non-sinusoidal] on the 300 vdc line.

It appears the RS of the capacitors is way too high.

What manufacturer or brand are others using with success? Does MOUSER
carry suitable replacements? If so, what brand/style?

Other sources?

TIA

DD, W1MCE


FIRST,

Mike Bryce, WB8VGE [The Heathkit Shop]
http://www.theheathkitshop.com/
and Jeff Weinberg, W8CQ [Harbach Electronics]
http://www.harbachelectronics.com/

have been offering replacement capacitors and boards for Heathkit products.
An ideal solution for the inexperienced newcomer -- who does not wish to
guess about replacements or repair parts.

Here are the "Major" distributors for new electronic components.

DigiKey
http://www.digikey.com

Mouser
http://www.mouser.com/

Allied
http://www.alliedelec.com

Newark
http://www.newark.com/

MCM Electronics (a favorite for radio-TV shops)
http://www.mcmelectronics.com/

all have ample selections of Vishay/Sprague; CDE/Mallory and Panasonic
models.

Start with 2 of the major mfg. for specifications and selection.

CDE - base in South Carolina (USA)
http://www.cde.com/

CDE Selection Guide
http://www.cde.com/catalogs/aesg.pdf

CDE Application Guide
http://www.cde.com/catalogs/AEappGUIDE.pdf

and Panasonic (Japanese) - available from DigiKey
**Panasonic has been slowly discontinuing some of their screw terminal
models -- favoring the "snap in models"
http://www.panasonic.com/industrial/...p_lcanelec.htm

Panasonic Computer Grade
http://dkc3.digikey.com/PDF/T071/1283.pdf

Panasonic Snap-In
http://dkc3.digikey.com/PDF/T071/1276-1282.pdf