THIS LISTING IS FOR THE SCHEMATIC AND PARTS TO MAKE A 1625 (OR 19BG6) REGEN RADIO. THIS LISTING DOES NOT INCLUDE HEADPHONES OR A POWER SOURCE.

THIS IS NOT A FINISHED PRODUCT. YOU WILL BE MAKING THIS RADIO FROM SCRATCH. SOME DEGREE OF EXPERIENCE IS REQUIRED BEFORE TACKLING A PROJECT LIKE THIS. NO STEP BY STEP MANUAL IS INCLUDED. ASIDE FROM A FEW NOTES THERE ARE NO ASSEMBLY INSTRUCTIONS.

HOWEVER YOU WILL RECEIVE A DETAILED HAND-SKETCHED SCHEMATIC WITH PARTS IDENTIFIED BY SPECIFIC VALUES. 

YOU WILL RECEIVE ALL THE PARTS, CONTROLS, KNOBS AND HARDWARE, INCLUDING AN UNFINISHED BREADBOARD LIKE THE ONE THAT YOU SEE IN THE PHOTOS. THE LITTLE RED FRONT CONTROL PANEL IS ALSO INCLUDED.

FOR THE RADIO PICTURED I HAVE USED THE OLD TRADITIONAL STYLE OPEN FRAME CONSTRUCTION, POPULAR DURING THE 30's AND 40's DECADES OF THE LAST CENTURY.

THE PHOTO SHOWS THE 19BG6G TUBE ON THE CHASSIS. EXCEPT FOR THE FILAMENT VOLTAGE THE 1625 IS VIRTUALLY IDENTICAL TO THE 807, 6BG6, 19BG6, ETC. SEE PHOTO #6 WITH A 1625 AND 19BG6G SIDE BY SIDE. YOU MAY REQUEST EITHER VACUUM TUBE (1625 OR 19BG6G). I WILL INCLUDE THE MATCHING SCHEMATIC, DEPENDING ON YOUR TUBE SELECTION.    

THE COVERAGE IS CONTINUOUS FROM ABOUT 3.6 TO  14.17 MHZ. WITH THIS RADIO THERE ARE NO PLUG-IN COILS TO CHANGE.  AS A BONUS I HAVE ADDED A ONE STAGE TRANSISTOR HEADPHONE AMPLIFIER, WHICH INCREASES THE VOLUME CONSIDERABLY. THE TRANSISTOR AMP IS PART OF THE CIRCUITRY, AND RUNS OFF THE COMMON DC FILAMENT/B+ LINE.

HIGH IMPEDANCE, 2 TO 4K OHM INDUCTIVE OR PIEZO HEADPHONES ARE REQUIRED FOR THIS RECEIVER. NO HEADPHONES ARE INCLUDED IN THIS LISTING. YOU MUST PROVIDE YOUR OWN.

A WELL FILTERED 12 TO 14 VOLT DC POWER SUPPLY (OR BATTERIES) IS REQUIRED TO RUN THE 1625 RADIO (NO POWER SOURCE IS INCLUDED). I FIND THE 12 VOLT CORDLESS DRILL BATTERIES MAKE AN EXCELLENT POWER SUPPLY FOR THIS TYPE OF RADIO. THE 19BG6G CIRCUIT IS VIRTUALLY IDENTICAL EXCEPT THAT YOU'LL NEED A 15 TO 20 VOLT DC SUPPLY (OR BATTERIES).  

THIS CIRCUIT HAS MAIN, FINE TUNING AND REGEN CONTROLS ON THE FRONT PANEL. SINCE THIS IS AN OPEN CHASSIS WITH NO SHIELDING YOU WILL GET SOME HAND CAPACITY EFFECT, MORE SO IN THE HIGHER FREQUENCIES. THIS IS COMMON FOR OPEN FRAME RADIOS AND WAS PART OF THE CHARACTERISTIC NOSTALGIA OF REGENERATIVE RADIOS AND CRYSTAL SETS OF THAT ERA.

 

YOU'LL NEED A WIRE ANTENNA OF AT LEAST 50FT TO 100 FT. IN LENGTH, ALONG WITH A GOOD EARTH GROUND.

I GUARANTEE, IF PROPERLY CONSTRUCTED, THIS RADIO WILL WORK. THIS IS A TRIED AND PROVEN DESIGN. I HAVE LITERALLY MADE AND SOLD DOZENS OF SIMILAR RADIOS ON EBAY.

 

I'VE DESIGNATED THIS AS A "USED" LISTING, SINCE A SMALL PERCENTAGE OF THE PARTS WILL BE USED, THOUGH MOST ARE NOS.

THANKS FOR STOPPING BY......KW7T