RadioBanter

RadioBanter (https://www.radiobanter.com/)
-   Swap (https://www.radiobanter.com/swap/)
-   -   WTB: Electrolytics for Heathkit SB-220 / SB-221 (https://www.radiobanter.com/swap/55726-wtb-electrolytics-heathkit-sb-220-sb-221-a.html)

W8KZW March 14th 04 07:10 PM

WTB: Electrolytics for Heathkit SB-220 / SB-221
 
200 uf at 450 V cans. Will buy 1 or all 8.

Or, might buy your junker amp.


--
Please reply to

Thanks,
Jeff, W8KZW
Near Detroit



Scott Dorsey March 14th 04 10:09 PM

W8KZW wrote:
200 uf at 450 V cans. Will buy 1 or all 8.

Or, might buy your junker amp.


Honestly, putting old bad capacitors in there to replace existing old
bad capacitors does not seem like a step up.

Do it right. If you want to keep those nice metal cans, either use
brand new replacement cans (Antique Electronics Supply carries them),
or take the old cans out, scoop the guts out, and use RTV to mount some
new modern Panasonic capacitors inside the cases.

You put ROE caps in there, and you'll be right back where you started
in a couple years. The 450V Panasonics are not expensive and they are
solid and reliable. Get the 105'C versions.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

March 14th 04 10:45 PM

In article ,
(Scott Dorsey) wrote:

The 450V Panasonics are not expensive and they are
solid and reliable. Get the 105'C versions.
--scott


Good advice. Mouser has them.
www.mouser.com
--


Gary Schafer March 14th 04 11:00 PM

On 14 Mar 2004 17:09:25 -0500, (Scott Dorsey) wrote:

W8KZW wrote:
200 uf at 450 V cans. Will buy 1 or all 8.

Or, might buy your junker amp.


Honestly, putting old bad capacitors in there to replace existing old
bad capacitors does not seem like a step up.

Do it right. If you want to keep those nice metal cans, either use
brand new replacement cans (Antique Electronics Supply carries them),
or take the old cans out, scoop the guts out, and use RTV to mount some
new modern Panasonic capacitors inside the cases.

You put ROE caps in there, and you'll be right back where you started
in a couple years. The 450V Panasonics are not expensive and they are
solid and reliable. Get the 105'C versions.
--scott


When mounting the panasonics
the pin spacing will probably be different from the old ones. You can
use one of the old mounting holes for each capacitor and drill a new
hole for the other one.

Look at the bottom of the board and you can figure out where to drill
the hole so the pin will come through into the proper land. No jumpers
needed. Be sure to find the proper position so that all the capacitors
fit nice on the board and do not hit one another.

When done it will look like they belong there.

73
Gary K4FMX



W8KZW March 17th 04 04:03 AM

Thanks, everyone, for all your comments and suggestions. I really
appreciate the comments.


73,
Jeff
W8KZW




Gary Schafer wrote in message . ..
On 14 Mar 2004 17:09:25 -0500, (Scott Dorsey) wrote:

W8KZW wrote:
200 uf at 450 V cans. Will buy 1 or all 8.

Or, might buy your junker amp.


Honestly, putting old bad capacitors in there to replace existing old
bad capacitors does not seem like a step up.

Do it right. If you want to keep those nice metal cans, either use
brand new replacement cans (Antique Electronics Supply carries them),
or take the old cans out, scoop the guts out, and use RTV to mount some
new modern Panasonic capacitors inside the cases.

You put ROE caps in there, and you'll be right back where you started
in a couple years. The 450V Panasonics are not expensive and they are
solid and reliable. Get the 105'C versions.
--scott


When mounting the panasonics
the pin spacing will probably be different from the old ones. You can
use one of the old mounting holes for each capacitor and drill a new
hole for the other one.

Look at the bottom of the board and you can figure out where to drill
the hole so the pin will come through into the proper land. No jumpers
needed. Be sure to find the proper position so that all the capacitors
fit nice on the board and do not hit one another.

When done it will look like they belong there.

73
Gary K4FMX


Len Nathanson March 17th 04 03:29 PM

Gary Schafer wrote in message . ..
On 14 Mar 2004 17:09:25 -0500, (Scott Dorsey) wrote:

W8KZW wrote:
200 uf at 450 V cans. Will buy 1 or all 8.

Or, might buy your junker amp.


Honestly, putting old bad capacitors in there to replace existing old
bad capacitors does not seem like a step up.

Do it right. If you want to keep those nice metal cans, either use
brand new replacement cans (Antique Electronics Supply carries them),
or take the old cans out, scoop the guts out, and use RTV to mount some
new modern Panasonic capacitors inside the cases.

You put ROE caps in there, and you'll be right back where you started
in a couple years. The 450V Panasonics are not expensive and they are
solid and reliable. Get the 105'C versions.
--scott


When mounting the panasonics
the pin spacing will probably be different from the old ones. You can
use one of the old mounting holes for each capacitor and drill a new
hole for the other one.

Look at the bottom of the board and you can figure out where to drill
the hole so the pin will come through into the proper land. No jumpers
needed. Be sure to find the proper position so that all the capacitors
fit nice on the board and do not hit one another.

When done it will look like they belong there.

73
Gary K4FMX


Try Newark Electronis on line, they have most caps.
Len, W8RC


All times are GMT +1. The time now is 11:26 AM.

Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
RadioBanter.com