Power transformer for a SLM Crate VC20 tube amp.....

[52 Bill]

aimeovaldi: I have PM'ed you regarding the transformer that you ordered as I don't think that it will work for this amp.

The correct one would be an Edcor XPWR152. I hope that you can change the order for the correct one.

[J M Fahey]

Hope the same.

The one first suggested and ordered is basically a *Preamp* PT, will feed no realistic power amp.

Guess it's not too late since they have to be custom built and specified "6 weeks" .

You'll have to pay a little extra for it; $43.21 list price vs. $37.03 .

[aimeovaldi]

I have placed a call to Edcor regarding a change in the order, all lines were busy, I left a message and will continue to attempt contact. Hopefully they can amend the order, but if not, it was only 55.00. I still appreciate the help and that you responded to correct the info.

[aimeovaldi]

Edcor called me back, they have no problem changing the order, and it is only 7.12 more. They are great to work with. So all is good and I should have the transformer in about 6 weeks. I will keep all posted as I go. Thanks again.

[52 Bill]

I'm glad that you were able to get it straightened out and again I apologize for the error.

Because the filament winding lacks a center tap, you will need to add two 100 ohm, 1/2 watt resistors to the circuit to create a ground reference for the heater circuit.

[aimeovaldi]

Well I received the transformer and the amp is at the tech as I type. Hope all goes well and she is up and running soon.

[J M Fahey]

Cool, good luck.

Just curious, how long did it take Edcor to actually make and deliver the transformer?

It might be useful for others.

[aimeovaldi]

The total time was about 3 weeks from order to delivery. Pretty quick in my opinion.

[J M Fahey]

Thanks.

It's always useful to be able to match "promises" to "reality" ...which in this case was excellent.

6 weeks promised vs. 3 weeks actual delivery time?
Way to go Edcor !!!!

[patlaw]

Because the filament winding lacks a center tap, you will need to add two 100 ohm, 1/2 watt resistors to the circuit to create a ground reference for the heater circuit.

Is the winding for the heaters on the original transformer actually 12.6 volts center-tapped?

[52 Bill]

Is the winding for the heaters on the original transformer actually 12.6 volts center-tapped?

According to the schematic it is 6.3 vac center tapped.