CalRad DPDT "Ice Cube" Relay

[Oddvar R]

Hi. I guess the CalRad DPDT "Ice Cube" Relay is difficult to get, so, what can one use instead? I am looking into the 2nd g 50w/ODS. And I wonder what materiel the original boards were made of?

And in the lower right corner is a electrolytic, is i 20uf as well?

[pompeiisneaks]

If you look at the thread, a bit lower on the first page, martin manning posts a closeup of an alternate relay:

https://ampgarage.com/forum/viewtopic.php?f=5&t=12870

if you look at this picture in the thread:

https://ampgarage.com/forum/download/fi ... &mode=view

it shows its a 20uF.

I don't know why there's not a schematic anywhere on that thread... hmm.

Dumble often used formica as his board material, but that does look more like FR4/Garolite. Not sure. I personally always use FR4/Garolite because it's way more solid than anything I've used, and easily available.

~Phil

[10thTx]

Doug Hoffman sells relay boards and relays

https://hoffmanamps.com/MyStore/perlsho ... =209221540

And the Hoffman forum has quite a bit of info with schematics, layouts and photos on relay switching

http://el34world.com/Forum/index.php?topic=14348.0

With respect, 10thtx

[Oddvar R]

Doug Hoffman sells relay boards and relays

https://hoffmanamps.com/MyStore/perlsho ... =209221540

And the Hoffman forum has quite a bit of info with schematics, layouts and photos on relay switching

http://el34world.com/Forum/index.php?topic=14348.0

With respect, 10thtx

I have bought the ones I have from Hoffman, but I was just curious about the Calrads. Seems like a lot of parts for the Dumbles are hard to get.

[Oddvar R]

If you look at the thread, a bit lower on the first page, martin manning posts a closeup of an alternate relay:

https://ampgarage.com/forum/viewtopic.php?f=5&t=12870

if you look at this picture in the thread:

https://ampgarage.com/forum/download/fi ... &mode=view

it shows its a 20uF.

I don't know why there's not a schematic anywhere on that thread... hmm.

Dumble often used formica as his board material, but that does look more like FR4/Garolite. Not sure. I personally always use FR4/Garolite because it's way more solid than anything I've used, and easily available.

~Phil

Thanks again. The Garolites seems expensive though.