Latest find Hy-Range 5, Model 674

[Trapper_267]

Here's my newest one. Hy-Range 5 model 674.

Note this has the VFO Socket.

4 Pin screw on mic socket.

Speaker on the left side.

EX or PA in the blank spot.

Now when hooked to the 675A VFO it transmit's on AM and SSB.

But when the VFO is set on 27.385 AM, (Using a freq counter) and switched to LSB, it is untuneable to the other person talking.
When trying to use the fine tune on the radio the control spin's like there's nothing there. 
Unlike the other 674B's i have that spin 120* from stop to stop.
All my dealing's with the 675A VFO have been done with a Hy-Range 5, 674B that the pigtail for the VFO was added to it.
C-ya Trapp.

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[Sandbagger]

Mar 25, 2018 8:40:04 GMT -5 Trapper_267 said:

Here's my newest one. Hy-Range 5 model 674.

Note this has the VFO Socket.

4 Pin screw on mic socket.

Speaker on the left side.

EX or PA in the blank spot.

Now when hooked to the 675A VFO it transmit's on AM and SSB.

But when the VFO is set on 27.385 AM, (Using a freq counter) and switched to LSB, it is untuneable to the other person talking.
When trying to use the fine tune on the radio the control spin's like there's nothing there. 
Unlike the other 674B's i have that spin 120* from stop to stop.
All my dealing's with the 675A VFO have been done with a Hy-Range 5, 674B that the pigtail for the VFO was added to it.
C-ya Trapp.

A clarifier that spins like that usually means that the control is a variable cap instead of a pot. Many older radios had a variable cap for the clarifier, including the Lafayette Telsat SSB 50, which is a very similar design to the Hy-Gain. Also I've seen radios, that originally had a variable potentiometer clarifier, modified to use a variable cap (with a choke in series) in order to extend the range down 10Khz.