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Old 08-13-2019, 06:12 AM
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Fran604g Fran604g is offline
Love at first sound...
 
Join Date: Mar 2006
Location: Hemlock, NY
Posts: 76
Thanks guys, I won't be swapping any components, I think this radio will have more value remaining as original - at least to me, anyway.

Here are the capacitances as they're labeled, and measured with my inexpensive LCR meter (respectively):

.005mF (5000pF) = .006mF (6000pF) - 20%
.0025mF (250pF) = .00219mF (2190pF) -10%
.00025mF (250pF) = .00029mF (289pF) - 16%

The resistances as labeled and measured (respectively):

2M = 2.5M - 25%
5R = 8.7R - 75%
10R = 10.8R - 8%

The 2 pots are both 25 ohm, not the published 30 ohm/50 ohm shown on the schematic.

I haven't checked the xformers yet. I'll probably do that sometime today.

As I mentioned earlier, there is a missing connection on one leg of one of the rheostats - the one labeled on the schem. as "50 Ohm". It's only wired to pin one (F+) of the detector tube.

I don't want to assume anything, but shouldn't the other side of this rheostat go directly to ground? Or is it supposed to be connected to one side of the C battery? I now realize the 2 pots are used for regulating the filaments. Is that how relative volume is controlled? Or signal strength? Or both?

My friend sent me a couple of newspaper ads for the ERLA that he came across while he was researching something else.

Wow, $130 in 1926! That wasn't cheap, especially considering the rapidly falling prices of a (quickly becoming obsolete) top of the line Victrola or Edison Phonograph.
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