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Philco 604 Bias Cell
mboessen
Junior Member
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Posts: 18
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Joined: Mar 2018
City: Columbia, MO
#14

03-29-2018, 03:06 PM
Hi, Ron!

Yes, this is definitely a simple thing to try. Currently I have cobbled a 1.5v battery in there so I can tune and troubleshoot. If I ever get it working, I'm definitely going to try this. I don't want to send it out to someone and have that battery be a problem for them.

Currently, my I.F. is working ok. I'm injecting through a .01 cap to the grid of the first and second i.f., and they tune ok. RF is not going so well. The sensitivity is poor, I can't get the frequency dial to calibrate, and it just acts wiggy. For instance, I can set the tuning dial to 800 kc, dial my sig gen from 550 to 1500 and pick it up at 6 different places. Almost like the local oscillator is running spurious or some such. I don't know what to do. My 6A7 is pretty lame, and I have one on order, so I guess I'll try to give up on it until that comes in.

I'll bookmark this thread and let you know how your idea works if I ever get the set working. Right now, it doesn't look good.

Thanks!

Mike
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Messages In This Thread
Philco 604 Bias Cell - by mboessen - 03-28-2018, 03:37 PM
RE: Philco 604 Bias Cell - by morzh - 03-28-2018, 05:02 PM
RE: Philco 604 Bias Cell - by mboessen - 03-28-2018, 08:28 PM
RE: Philco 604 Bias Cell - by PhilcoPhan1936 - 03-29-2018, 04:16 AM
RE: Philco 604 Bias Cell - by Arran - 03-29-2018, 05:12 AM
RE: Philco 604 Bias Cell - by David - 03-29-2018, 08:24 AM
RE: Philco 604 Bias Cell - by Radioroslyn - 03-29-2018, 08:44 AM
RE: Philco 604 Bias Cell - by mboessen - 03-29-2018, 09:24 AM
RE: Philco 604 Bias Cell - by 462ron - 03-29-2018, 10:12 AM
RE: Philco 604 Bias Cell - by morzh - 03-29-2018, 10:47 AM
RE: Philco 604 Bias Cell - by mboessen - 03-29-2018, 10:57 AM
RE: Philco 604 Bias Cell - by mboessen - 03-29-2018, 11:00 AM
RE: Philco 604 Bias Cell - by 462ron - 03-29-2018, 01:34 PM
RE: Philco 604 Bias Cell - by mboessen - 03-29-2018, 03:06 PM
RE: Philco 604 Bias Cell - by mboessen - 03-29-2018, 09:31 PM
RE: Philco 604 Bias Cell - by mboessen - 03-29-2018, 09:39 PM
RE: Philco 604 Bias Cell - by Radioroslyn - 03-29-2018, 10:14 PM
RE: Philco 604 Bias Cell - by 462ron - 03-29-2018, 10:30 PM
RE: Philco 604 Bias Cell - by Radioroslyn - 03-29-2018, 11:04 PM
RE: Philco 604 Bias Cell - by mboessen - 03-30-2018, 08:49 AM
RE: Philco 604 Bias Cell - by 462ron - 03-30-2018, 10:07 AM
RE: Philco 604 Bias Cell - by Radioroslyn - 03-30-2018, 12:22 PM
RE: Philco 604 Bias Cell - by mboessen - 03-30-2018, 07:41 PM
RE: Philco 604 Bias Cell - by Arran - 03-31-2018, 02:20 AM
RE: Philco 604 Bias Cell - by mboessen - 03-31-2018, 10:32 AM



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