Best 5691 listed at:
Best 5692 listed at:

5691 RCA Red Base / 5692 RCA Red Base / 5692 CBS/SYLVANIA brown base (click on links below to check stock) 5691 RCA Red Base 5692 RCA Red Base 5692 CBS / SYLVANIA brown base
5691 RCA Red Base Dual Triode (10,000 hour low noise substitute for a 6SL7GT, also see 6SL7) - Ampeg Heritage B-15 - Alessandro Itallian Greyhound jazz amp - Alessandro Black and Tan 2005 - Almarro A318B - Eddie Current TO BUY 5691 RCA RED BASE
5691 SONIC COMMENTS: ------------------- I'm just writing to thank you for " THE BEST 5691's " I've ever heard - the money I spent was worth it !!! I just plugged them into my Alessandro English guitar amp and cannot believe the difference!!!! I'm totally blown away with the quality of the tubes. I dont know if you remember me mentioning that I had a bad experience with another tube dealer about 2 years ago. I bought two RCA 5691's from him ($80 each) that are not usable in my amp - they look good but are very noisy and full of clicks and pops. Your tubes on the other hand are totally quiet - totally noise free and worthy of the "Platinum" title. Thanx again - I'm totally blown away regards - George V.
5692 RCA Red Base Dual Triode (The 5692 was designed for critical industrial applications where 10,000 hour life, extreme uniformity (close triode section balance), rigid construction, and extreme stability are paramount. Within it ratings, a 5692 may be used to replace a 6SN7GT) - VAC Phi 200 amps - VAC Renaissance 70/70 - Cary 805M amps - Cary 300 SEI - Mastersound 845 monoblock 2008 - Audio Note M2 preamp - Aesthetix 5692 MAX RATINGS: (taken from RCA Manual November 10th, 1947) ---------------- Vplate max per triode section = 275V Vplate B+ Supply Voltage max = 330V Iplate max = 15ma Plate dissipation max = 1.75W per section TO BUY 5692 RCA RED BASE

5692 CBS HYTRON Brown Base Dual Triode (Shiney Black Plates) (highly recommended for Cary audio gear and George Wright line amp) (detailed, quiet, good bass, nice resolution) - MFA Luminescence C (Pre-amplifier) - Audio Note Conquest 1998 - Cary preamps and amps - Cary SLP-05 - Darkvoice - Wright Sound WLA12A preamp - Eico HF89 - Border Patrol TO BUY 5692 CBS HYTRON BROWN BASE

5692 Sylvania Brown Base (highly recommended for Cary audio gear and George Wright line amp) (detailed, quiet, good bass, nice resolution) TO BUY 5692 SYLVANIA Brown Base