Heathkit IT - 21 Tube Tester - Accurate - HAM
Item History & Price
| Reference Number: Avaluer:51263968 | UPC: Does not apply |
Here's a nice, clean Heathkit model IT-21 tube tester from my collection. It has all the sockets you've been looking for to test the tubes in your vintage radios. It'll test those older 4-pin, 5-pin, 6-pin, and even 7-pin tubes, as well as the later 8-pin Octal, 8-pin Loctal and the 7-pin and 9-pin miniatures. It also has sockets for both 5-pin and 7-pin Nuvistors, 9-pin Novar tubes and 12-pin Compactrons. The 9-pin miniature socket has an additional center pin to also accept 10-pin m...iniature tubes.Included with the tester is a clean re-print of the operating and maintenance sections of the manual, including the schematic. Only the detailed construction steps have been omitted. Also included is the very latest data manual released for the IT-xx series of tube testers. It contains not only new data but also newer preferred settings for some tubes and was intended to replace the internal chart. I've also included a re-print of the obsolete and seldom used tube data originally released for the TC-2, but never offered again. It's a gold mine of testing data for those old 2 and 3-digit tubes found in vintage radios. It also includes a cross-reference of European and US types.If you want a tube tester that's very popular, is in excellent working condition and has lots of data available, you'll be pleased with this one! Heathkit IT-21 Tube Tester - Accurate! - HAM
