1925 Splitdorf R500 “Polonaise” Radio with 5 DISPLAY Type 26 Globe Type Tubes. (To operate you would need to use Type 01A Tubes). Splitdorf was known for their high build quality and excellent preforming sets. This is an excellent original example of this radio. The cabinet finish is unique and in excellent condition. (Please see pictures for best description). It is ready for static display but should be an easy candidate for restoration and a nice addition to any radio collection. It is celebrating its 100th birthday this year.
Voltage converter for battery operated tube radio receivers / transceivers. Solution to the problem of mobile use. Allows for mobile operation of vintage DC operated radios from a single 12V battery. This is a battery consolidator providing multiple voltages from a single DC source. It also becomes a battery eliminator when powered by an AC/DC adapter (also available). Converts 11 – 30VDC (Vin) to necessarily filament, plate, and grid voltages. “A” (filament) supply : “Ax”: 1.25V to 10V / 3 amp, “B” (plate) supplies: 135V/ 80mA, 90V/ 60mA, 67.5V /45mA, 45 and 22.5V/ 5mA, sum of all “B” supplies. B-, A- and Vin(-) are common in this converter. It CAN NOT BE USED to power farm radios using 1.5 and 90V batteries. Radios requiring B- to be connected to A+ will operate with B-connected to A- but with slightly reduced plate voltages. DC input can be supplied by battery (see photo, battery not included) or appropriately sized linear AC / DC adapter (see photo, adapter not included). Two indicators: one indicates battery is connected and voltage converter is ON, the other indicates radio is also ON and drawing current. Small size (4.7 x 4.7 x 4″ height) with cover on (3″ height with cover off). Light weight 18 oz. Without battery or adapter. DC in: 11 – 30V. Operating temperature 0-35 deg C. Contains input and output EMI filters. Overload, short circuit and reverse polarity protected. Converters can be connected in series to provide higher “B+” voltages: 157.5, 180, 202.5, 225 or 270V (247.5V can also be provided with series connection and simple adjustment). Series connection requires two converters and two batteries or AC/DC adapters.
Here is an (almost) Antique 1926 PREMIER ENSEMBLE Radio with 5 DISPLAY 01A Globe Type Tubes. It measures approximately 23-3/4″ Wide x 10.5″ Front to Back x 9 Tall. The cabinet finish is original and complete. There is a little filler for a small area on the lid. The front panel and dials are in very good condition. (See pictures and video for details and best description). I believe this to be a rare set. In 56 years of collecting it is the only one that I have seen. It would make a unique addition to any radio collection.
