[Heath] SG-7 Help

[Glen Zook]

Those capacitors are NOT electrolytic except for the 150 uf.  Are you sure that the capacitor is 150 uf and not 150 pf (mmf on the older schematics).  If the 150 uf capacitor is really 150 uf at 600 volts, it will be VERY large as compared to the rest of the capacitors.
600 volts is not a common value for electrolytics but there have been some.
All but the 0.05 uf capacitor values are standard these days.  You will not find an 0.05 uf but will find 0.047 uf capacitors which will work fine.  The "new" capacitor values follow the same tolerance values as resistors these days.

If the actual capacitor is large and is an electrolytic capacitor of 150 uf (or mfd) at 600 volts, then you can replace it with 2 each 330 uf (mfd) capacitors at 450 volt in series.  Put a resistor about 100K at at least 2-watts across each capacitor.
You can get suitable capacitors for a very reasonable price from Mouser
http://www.mouser.com

Glen, K9STH



Website:  http://k9sth.com

--- On Sat, 9/29/12, Ron Kramer <kd6edv at gmail.com> wrote:

From: Ron Kramer <kd6edv at gmail.com>
Subject: [Heath] SG-7 Help
To: heath at puck.nether.net
Date: Saturday, September 29, 2012, 6:54 PM

I am rebuilding the unit and am looking for these caps:
 
150uf   Qty 1
 
.001uf   Qty 2
 
.01uf   Qty 3
 
.002uf   Qty 1
 
.05uf   Qty 1
 
.01uf   Qty 1
 
The caps are all rated at 600v. Are these electrolytic caps? The schematic does not show a +/- on each cap.
 
Does anyone have some to sell on know where I could find them?

-- 
Ron KD6EDV

SKCC# 3551

FPqrp# 2132


-----Inline Attachment Follows-----

_______________________________________________
Heath mailing list
Heath at puck.nether.net
https://puck.nether.net/mailman/listinfo/heath
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://puck.nether.net/pipermail/heath/attachments/20120929/ea5c0760/attachment.html>