On 11/10/2017 04:01 PM, Michael A Terrell wrote:
bitrex wrote:

For a brief period transformers were cheaper than a set of tubes with
weird custom filament voltages, but that didn't last long.


Â*Â* Zenith, GE and other name brands continued to build high end sets
with power transformers. Some of the later Zenith TVS had a self
resonant CVT that sold for about 1/3 the price of the set.

Â*Â* Their cheap sets were all series filament, with a voltage doubler
for the B+.

For amusement here's a representative list of some of the _retail_
prices on the parts list for the 1935 Kadette 52 I'm working on:

Tube socket: $0.10
2 gang tuning "condenser": $1.65
5 inch dynamic speaker: $3.50
6-6-6 uF electrolytic can capacitor: $1.35
IF transformers: $1.25
Broadcast/tuning coils: $1.00
Power transformer: $2.35
Cabinet: $5.70