01-03-2020, 01:02 AM
I use to get out to PNAS, Snow Hill, and Assateague Island from time to time back in the 80's for a company I was working for. Do they still have that big old auction in Crumpton I think it was called Dixons?
If it checks out ok then I would proceed w/the if alignment.
>
1. Sig Gen set to 460KC modulated with 400hz, dial at 55, select BC range,turn down 2nd IF trimmer no. 54
Yup that's what it sez.
connect sig gen without coupling cap to the grid of of the first IF tube with the grid cap wire removed.
Personally I wouldn't I would just connect the signal to the ant post.
3. I am suppose to connect the meter to the plates of the output tubes. I believe that to be pin 2 of the 42 tubes. Probe and ground on opposing tubes pin 2 with the meter set to AC and on the 0-30v scale
correct?
You don't want pin 2 of the 42's anywhere near ground as they are @ +300dc, your 80 will hate you[Image: https://philcoradio.com/phorum/images/sm...wisted.gif] to say nothing of the output transformer and field coil. To extract some ac voltage from the 42 use a large mylar cap like 2mfd @600v to connected to pin 2 the other end of the cap to the ac volt meter. The other lead of the meter connects to the chassis.
1. Connect Sig gen to the Antenna (replace grid cap wire on 1st IF) varying the freq and band switch as instructed, turn down wave trap trimmer no 1
The Riders has a note when moving the sig gen for this to use a 200 mmF condenser dummy antenna for BC and 400 ohm resistor for all SW. Is this saying put a 200mmf cap between the antenna jack and the sig gen when aligning BC steps and a 400 ohm resistor when aligning sw?
Don't know never used one.
There is no mention of out meter placement being moved so I presume it stays as above?
Yes would stay as first connected.
If it checks out ok then I would proceed w/the if alignment.
>
1. Sig Gen set to 460KC modulated with 400hz, dial at 55, select BC range,turn down 2nd IF trimmer no. 54
Yup that's what it sez.
connect sig gen without coupling cap to the grid of of the first IF tube with the grid cap wire removed.
Personally I wouldn't I would just connect the signal to the ant post.
3. I am suppose to connect the meter to the plates of the output tubes. I believe that to be pin 2 of the 42 tubes. Probe and ground on opposing tubes pin 2 with the meter set to AC and on the 0-30v scale
correct?
You don't want pin 2 of the 42's anywhere near ground as they are @ +300dc, your 80 will hate you[Image: https://philcoradio.com/phorum/images/sm...wisted.gif] to say nothing of the output transformer and field coil. To extract some ac voltage from the 42 use a large mylar cap like 2mfd @600v to connected to pin 2 the other end of the cap to the ac volt meter. The other lead of the meter connects to the chassis.
1. Connect Sig gen to the Antenna (replace grid cap wire on 1st IF) varying the freq and band switch as instructed, turn down wave trap trimmer no 1
The Riders has a note when moving the sig gen for this to use a 200 mmF condenser dummy antenna for BC and 400 ohm resistor for all SW. Is this saying put a 200mmf cap between the antenna jack and the sig gen when aligning BC steps and a 400 ohm resistor when aligning sw?
Don't know never used one.
There is no mention of out meter placement being moved so I presume it stays as above?
Yes would stay as first connected.
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
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