Zenith 15U270

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Zenith 15U270

rfeenstra
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Posts: 1,185
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Joined: Oct 2017
City: Allendale, MI

05-31-2020, 03:54 PM

And here are after pics of the chassis. You will note an extra transformer next to the choke. I decided to install a bucking transformer under the chassis (Zenith gave plenty of real estate in this chassis). It brings my 121 volt line voltage down to 115 volts. I've heard from multiple sources that Zenith undersized the transformers and they run way too warm at today's voltages. I could drop it another 6 volts using the 12 volt tap for 109 volt operation. Any comments? I'm looking for advice on that issue! The radio will work at that voltage.

Oh, and one more question. You can see that the previous tech installed 2 caps in line with the antenna leads. For now, I left them in. I presume they were put in to isolate the radio from the antenna from some sort of voltage build up on the antenna. Any ideas?

(This post was last modified: 05-31-2020, 04:13 PM by rfeenstra.)

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Zenith 15U270 - by rfeenstra - 05-31-2020, 03:45 PM

RE: Zenith 15U270 - by rfeenstra - 05-31-2020, 03:54 PM

RE: Zenith 15U270 - by morzh - 05-31-2020, 05:10 PM

RE: Zenith 15U270 - by rfeenstra - 05-31-2020, 07:06 PM

RE: Zenith 15U270 - by morzh - 05-31-2020, 07:39 PM

RE: Zenith 15U270 - by Eliot Ness - 06-01-2020, 07:07 AM

RE: Zenith 15U270 - by rfeenstra - 06-04-2020, 07:12 PM

RE: Zenith 15U270 - by sdradioman - 06-05-2020, 06:06 AM

RE: Zenith 15U270 - by rfeenstra - 06-05-2020, 09:12 PM

RE: Zenith 15U270 - by morzh - 06-05-2020, 10:44 PM

RE: Zenith 15U270 - by Phlogiston - 06-06-2020, 09:46 AM

RE: Zenith 15U270 - by rfeenstra - 06-06-2020, 10:23 AM

RE: Zenith 15U270 - by rfeenstra - 06-06-2020, 05:23 PM

RE: Zenith 15U270 - by Phlogiston - 06-06-2020, 07:56 PM

RE: Zenith 15U270 - by rfeenstra - 06-06-2020, 08:47 PM

RE: Zenith 15U270 - by Phlogiston - 06-06-2020, 09:34 PM

RE: Zenith 15U270 - by rfeenstra - 06-09-2020, 08:14 PM

RE: Zenith 15U270 - by PhilcoJohn - 06-10-2020, 07:27 AM

RE: Zenith 15U270 - by Phlogiston - 06-11-2020, 10:32 AM

RE: Zenith 15U270 - by rfeenstra - 06-11-2020, 02:31 PM

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