20/27
Ad for Triad radio tubes. Type T-247 pentode. Triad Manufacturing Co., Inc., of Pawtucket, Rhode Island.
Source: eBay sellers
Restoration by: magscanner
- Created on
- Tuesday 21 November 2006
- Posted on
- Tuesday 21 November 2006
- Tags
- components, electron tubes, trade
- Visits
- 1450