PART ID PLEASE

Sat Aug 8 14:19:53 EDT 2009

On 8 Aug 2009 at 10:26, Robert Groh wrote:

> Assuming the SG-7 seems to be very close to the SG-8 (which I have)
> and uses the same transformer. From the schematic, the power
> transformer has a 117VAC primary (not too surprising) and the
> secondary has a 6.3 VAC winding for the two tubes (a 6C4 and a 12AU7)
> and a 120 VAC secondary. I'm totally guessing at the tube filament
> draw (I'll leave you to look up the tube charts) but it probably 400
> mA each.  The B+ current drain is maybe 10 to 20 mA.  So maybe 6.3 VAC
> at 1A and 120VAC at 20 mA for the transformer. 

This is almost exactly what I figured too.

I absolutely agree with your assessment...

Ken Gordon  W7EKB

-----------------------------------------------------------
Products bought, sold or traded here is the responsibility of the
parties involved.  This list and the City of Tempe are not responsible
for losses or misrepresentations of any kind.  Buyer beware!

-----------------------------------------------------------
This list is a public service of the City of Tempe, Arizona
-----------------------------------------------------------

Subscription control - http://www.tempe.gov/lists/control.aspx?list=HEATH
To post - HEATH at LISTS.TEMPE.GOV
Archives - http://lists.tempe.gov/archives/HEATH.html