Tube 12SA7GT or Röhre 12SA7GT ID2635, Pentagrid-Converter (Heptode), Octal (Int.Octal, IO) K8A, USA 1935 and Pentagrid (new) shown. Radio tubes are.

Title: 12SA7 12SA7GT Author: Tung-Sol Subject: JA-FP-2005-11-20 Created Date: 11/20/2005 12:33:58 PM

But then I looked in the RCA tube manual for the 12sa7 vs GT and saw that there is a big difference in the Supressor Grid internal connection. The GT has the suppressor connected internally to the Cathode.....

12SA7GT is a "penagrid converter." I am having trouble with one of the radios I am working with that has the 12SA7. My question is: How will a radio be affected if one uses a 12SA7GT rather than the 12SA7? Can I use the GT in palce of the non GT? The tubes are interchangeable but watch certain things. Pin #1 needs to be grounded on a 12SA7 (metal).

Common type USA tube/semicond. Some receiver tubes with Octal-bases are designated either with no suffix or with the suffixes "G" or "GT". Tubes labelled “GT/G” are actually type “GT”.

The 12SA7GT is a pentagrid converter for use as a mixer oscillator in superhet receivers. The design is quoted by RCA as optimised to increase stability. This exhibit has the base wires passing into the plastic base without further support.

The 12SA7GT is a pentagrid converter designed to minimize frequency drift. They are intended for service as combined oscillators and mixers in AC, storage battery, and AC/DC operated superheterodynes. Note: brands may vary. Photo is for reference only and may not exactly represent final product received.

Warning: Substitutes are given as a guide only - please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application.

2025年1月24日 · An item in excellent, new condition with no wear. The item may be missing the original packaging or protective wrapping, or may be in the original packaging but not sealed. The item includes original accessories. The item may be a factory second. See the seller's listing for full details and description. Oops!

With its model number NU 12sa7, this tube has a rich history that can be traced back to the United States. Whether you're a seasoned collector or just starting out, this National Union tube is sure to impress.