Extract from 1960 DeArmond Amps Catalog:
R15 Amp Instructions:
R15 Example 1, Ser. No. L0679: DeArmond R15 amp (B0053):
Speaker details – 220 054 – Jensen Manufacture, year 1960, week 45:
Front view of amp:
Amp logo – 1st. version:
Example 1, CF Martin Model 112, Ser. No. MM9239, All photos copyright A0164.
DeArmond’s in-house reference for this amp was RM15.
Tubes layout and Ser. No. L0679:
Chassis Interior (4 photos Note the Erie packs in photos 2 & 3):
M112 amp, general view:
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