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RCA 5692 is one of the USA made holy grail of 6SN7 tubes types! In stock and ready to ship. All red base RCA made. 3 pcs available at this time:
Broken Guide (2.4/2.2)
RCA made/branded GE (2.2/2.4)
1 available with Matched sections $10 extra (2.6/2.6)
All are red base made by RCA; One is branded GE in original GE box, the other 2 RCA in El Menco boxes.
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Holland Made Philips SQ E180F 6688 tubes. Triple Mica gold pin construction! 6688=E180F 10,000 hour 9 pin broadband pentode. Recommended for: Nobsound- here is a link to a video made by one of our customers after he received his matched pair for his Nobsound headphone amp: https://www.facebook.com/scott.lowell.5/videos/10208623852628597/ Supratek Chenin Cortese preamp Yamamoto 06-3 2010 $29.99 per tube
7062=E180CC Holland Dual Triode Experience Music DM70 amp Aria WV5XL phono preamp Mike Elliott design 2008 Eastern Electric Mini-Max Conrad Johnson P45 amplifier 1980's Exemplar
tubes-admin –
Very sweet sounding tubes with smoother low end and crisper high end than the original driver tubes. This is strongly recommended in tube-rolling threads, among others. Well worth the cost to upgrade.