Note
When these little power supplies were released in 1957 they were not promoted for use with any specific Heath product. Instead, the catalog simply said they would be perfect for a variety of uses in “autos, boats, and airplanes.” It was not until the release of the CB-1 in 1959 that the VP series really had a good reason for being. In addition to the CB-1, the VP series could also be used to power the HW-19, 29, and 30 “Lunchbox” transceivers. The units came in two versions—the VP-1-6 for six volt operation, and the VP-1-12 for twelve volt use. The difference between the two units is the tube type and vibrator. The transformer uses a dual primary and is wired differently for each version. The vibrator runs at 115 Hz. Check the tube type to determine the voltage.
A note in the catalog states that two or more units can be connected in parallel for increased current handling ability. (The HW-30 requires two units for proper operation).
In mid 1961 the VP series was replaced by the GP-11.
Power input:
VP-1-6: 6 VDC @ 4.5 amps
VP-1-12: 12 VDC @ 2.25 amps
Power output: 260 VDC @ 60 mA
Vibrator:
VP-1-6: Mallory 1601 or equivalent, 4-pin
VP-1-12: Mallory G1601 or equivalent, 4-pin
Frequency: 115 Hz ±7 Hz nominal
Tubes:
VP-1-6: (1) 6X4
VP-1-12: (1) 12X4
Photos, general information and specifications from "Heathkit: A Guide to the Amateur Radio Products," by Chuck Penson, WA7ZZE. Used with permission.
