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Zenith Model 7 -S-204 "Waltons"
Chas
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Posts: 693
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Joined: Apr 2018
City: S. Dartmouth State, Province, Country: MA
#12

09-17-2023, 10:18 AM
The A-Z-G terminals are used this way with a single wire antenna:

Connect A to the single wire antenna, connect Z to G and connect G to ground (Earth).

With a doublet antenna transmission line using two twisted wires, connect one wire to A and the other wire to Z, do not connect Z to G. Keep the G connected to earth ground.
The doublet antenna commonly uses a twisted pair of wires and is used as a transmission line to the antenna. The type of connection at the antenna will vary as the transmission line has a characteristic impedance, the antenna connection must match that, yet be broadband for all the shortwave frequencies. The twisted pair transmission line cancels out most noises from inside the home, a good choice if the radio is located well inside the home.
Pliny the younger
“nihil novum nihil varium nihil quod non semel spectasse sufficiat”
(This post was last modified: 09-18-2023, 10:30 AM by Chas.)
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Messages In This Thread
Zenith Model 7 -S-204 "Waltons" - by Antipodal - 08-30-2023, 05:11 PM
RE: Zenith Model 7 -S-204 "Waltons" - by Chas - 08-30-2023, 06:53 PM
RE: Zenith Model 7 -S-204 "Waltons" - by Chas - 09-02-2023, 01:06 AM
RE: Zenith Model 7 -S-204 "Waltons" - by RodB - 09-02-2023, 09:04 AM
RE: Zenith Model 7 -S-204 "Waltons" - by RodB - 09-17-2023, 09:45 AM
RE: Zenith Model 7 -S-204 "Waltons" - by Chas - 09-17-2023, 10:18 AM



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  1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Other Radios (Non-Philco)