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95 Lowboy

95 Lowboy; Philco, Philadelphia (ID = 282736) Radio
 
95 Lowboy; Philco, Philadelphia (ID = 461268) Radio
 
95 Lowboy; Philco, Philadelphia (ID = 461269) Radio
 
95 Lowboy; Philco, Philadelphia (ID = 506197) Radio
 
95 Lowboy; Philco, Philadelphia (ID = 506198) Radio
95 Lowboy; Philco, Philadelphia (ID = 547155) Radio 95 Lowboy; Philco, Philadelphia (ID = 692182) Radio
95 Lowboy; Philco, Philadelphia (ID = 1130009) Radio
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95 Lowboy; Philco, Philadelphia (ID = 547155) Radio
Philco, Philadelphia: 95 Lowboy [Radio] ID = 547155 247x336
Select picture or schematic to display from thumbnails on the right and click for download.
For model 95 Lowboy, Philco, Philadelphia Stg. Batt. Co.; USA:
Philco_95-Lowboy_Ebay seller gruggett. Image shows model 65-Lowboy. Model 95-Lowboy use the same cabinet.
 
Country:  United States of America (USA)
Manufacturer / Brand:  Philco, Philadelphia Stg. Batt. Co.; USA
Year: 1929/1930 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 9: 224 224 224 227 227 227 245 245 280
Main principle TRF (Tuned-Radio-Frequency but use of regeneration unknown); Screengrid 1926-1935
Tuned circuits 4 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage Alternating Current supply (AC) / 115 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
Power out
from Radiomuseum.org Model: 95 Lowboy - Philco, Philadelphia Stg. Batt
Material Wooden case
Shape Console, Lowboy (legs < 50 %).
Notes Model 95 was a "Screen Grid Plus" model and was available in a table, lowboy, highboy, Tudor highboy, and deluxe highboy cabinet. One dial (primary tuning control knob). Lowboy cabinet is similar to models 76 and 87 lowboys.
Price in first year of sale 149.00 $
External source of data Ernst Erb
Source of data Radio Collector`s Guide 1921-1932
Circuit diagram reference Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)
Mentioned in Pre-War Consoles
Literature/Schematics (1) Collector's Guide to Antique Radios (6th edition) (Philco 1928-36 Wiring Diagrams, Parts Lists, and Essential Service Data)


All listed radios etc. from Philco, Philadelphia Stg. Batt. Co.; USA
Here you find 3741 models, 2122 with images and 3137 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



 


Forum contributions about this model
Philco, Philadelphia: 95 Lowboy
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Philco (USA) Model 95 repair
Jeffrey Angus
16.Feb.07
  1 What a delightful set to work on. All the parts have no value written on them. Or some not listed anywhere Philco in-house part number. And of course, almost all the capacitors are potted in tar.

A thank you to the person who posted the schematic here. Unlike other online versions, this one is quite readable.

So, I sat down and generated a drawing of the bottom of the chassis so you know what all the unmarked parts are and what all the terminals are according to the numbers on the schematic.

http://www.radiomuseum.org/r/philco_lb_95.html

By the way, I have the original AutoCAD R12 .dxf file I made if anyone wants a copy of it.

Some notes on restoring this receiver:

There are three variations of cardboard tubes filled with tar mounted under the chassis.  Six of them are simply a 0.015 uF capacitor. Four of them have a 0.05 uF capacitor and a 250 Ohm resistor. The last one has a 0.05 uF capacitor and uses the spare lug as a tie point for other wiring. All three are easy to unstuff. Using a curved shield on a heat gun, heat the part until the tar starts to weep at the ends. Push the tar out of the cardboard tube and clean up any excess tar with a dull knife.  Mount the new component(s) in the cardboard tube, and stuff the center of the tube with tissue paper to act as a dam of sorts, then refill with the goo of your choice. I use hot melt glue, but I suspect some of you might want to go all the way and reclaim/reuse the original tar.

Mounted to the rear side of the chassis are two tin boxes. One has a single 0.05 uF capacitor, and the other has a pair of 0.025 uF capacitors. Both are almost painless to rebuild. Just unfold the tabs on the lead end, and push the innards out with a thin screwdriver.

Of course, now you have the true horror story to rebuild. The potted box with  eight capacitors inside.  The real problem with this is simply the crowded terminal strip on the bottom, three unmarked power resistors and the wiring loom attached to it.

TAKE LOTS OF NOTES when you untangle something like this. The wires are fragile and won't tolerate too many "Oh, it goes here instead".

I'll come back to this in a day or two after I've gotten that apart and rebuilt with any special comments or hazards to deal with. And of course, I'll be posting some pictures of what I did over the next week as well.

Also,  almost all of the composition resistors have drifted off in value and will need to be replaced.  I use epoxy formed with silicon molds to encase new resistors so that they look original. I figured, I might as well considering I went through the effort to restuff all the capacitors.

Jeff

 
Philco, Philadelphia: 95 Lowboy
End of forum contributions about this model

  
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