07-11-2017, 12:02 PM
For just tuning up BC sets something like a Heathkit SG-6,7,or 8 is OK. There are a lot of service grade sg around. Heath,Eico, and Knight all made them back in the '50s and 60's. The big draw back is frequency accuracy is lousy and the attenuator isn't calibrated along with the fact they leak rf badly. So you can't do any meaningful sensitivity measurements. But that aspect doesn't matter much w/the type of service we're talking about.
Two simple ways to work around the calibration issue is to use a modern digital receiver to check the sg output frequency. Or buy one of those inexpensive frequency counter ($10) and hook it to the sg output. It will display the output frequency.
Price wise you are looking around $20 or so. Make sure it comes w/the output cable, w/o it you can add $5-10 more to find the proper connector and make one up.
Next time ur in Philly stop by and I'll give one. Hmmm reminds me I found an old Philco 077 or 088 sg the other day when tiding up and I feel I should be doing something constructive. Maybe I'll have a go at it. Now where did I leave that catsup???
Two simple ways to work around the calibration issue is to use a modern digital receiver to check the sg output frequency. Or buy one of those inexpensive frequency counter ($10) and hook it to the sg output. It will display the output frequency.
Price wise you are looking around $20 or so. Make sure it comes w/the output cable, w/o it you can add $5-10 more to find the proper connector and make one up.
Next time ur in Philly stop by and I'll give one. Hmmm reminds me I found an old Philco 077 or 088 sg the other day when tiding up and I feel I should be doing something constructive. Maybe I'll have a go at it. Now where did I leave that catsup???
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry
