Author Topic: Zenith Info  (Read 800 times)

hermitcrab

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Zenith Info
« on: May 31, 2016, 10:09:35 AM »
Hey all.
Picked up another console for free from a buddy who was cleaning out grandma's house, I think is a early 60's unit , model # says SL- 2505, anyone have any idea of what year this is? also if someone has any paperwork for this model? I.E. dealers catalog, or brocures, or specs on this would be appreciated.
Thanks
Elton

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Re: Zenith Info
« Reply #1 on: June 07, 2016, 12:44:32 PM »
That is a 1964, I have an MT1971 with the same 4L21 amp having a bass boost switch.
The tuner looks different from mine though.
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Dave

hermitcrab

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Re: Zenith Info
« Reply #2 on: June 07, 2016, 07:56:36 PM »
Cool.... any idea what the output is for this? 15-20 watts?
Elton

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Re: Zenith Info
« Reply #3 on: June 24, 2016, 02:48:31 PM »
My best guess is that this amp, which uses a single-ended 6BQ5 for each channel, makes 7-8 watts per channel. 15 would be accurate. These amps do not drive the output tubes very hard.

What makes these Zeniths sound so good, appearing to have more power than some others, is the matching of output transformers and speakers.
I have not recapped the 4L21 amp in my console but the original Zenith-branded (Amperex) tubes tested good.

I have a 1959 Zenith console phono-only, and its original output tubes (also Amperex) tested weak but it sounds great.
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Dave