RCA 5691 6
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Product
Site
Price
Listed
eBay
1x RCA 5691 6SL7 Brown Base - Strong
$133
Feb 16, 2026
$133
Feb 16, 2026
eBay
5691 6SL7 RCA base rouge plaque noire, triple mica, paire assortie DD getter
€412
Jan 29, 2026
€412
Jan 29, 2026
eBay
5691 6SL7 RCA red base black plate, triple mica, DD getter Matched Pair
$399
Jan 19, 2026
$399
Jan 19, 2026
eBay
1 NOS RCA 5691 / 6SL7 Red Base Triple Mica Black Plates DD Getter
$150
Dec 7, 2025
$150
Dec 7, 2025
eBay
1 x 5691/6SL7gt RCA Tube*Strong Testing*RED BASE
$150
Oct 6, 2025
$150
Oct 6, 2025
eBay
(1) NOS/NIB RCA Military 5691 6SL7 Special Red Black Plate Tube ~ TESTS @ 114%+!
$129
Oct 1, 2025
$129
Oct 1, 2025
eBay
RARE Matched Pair RCA 5691/6SL7/ECC35 black plates tubes - 1979 - Tests NOS
$199
Sep 8, 2025
$199
Sep 8, 2025
eBay
2 - RCA 5691 6SL7 Tubes
$149
Apr 30, 2025
$149
Apr 30, 2025
eBay
RCA 5691 6SL7GT Red Base Grey Plate Tested Like NOS Balanced Tube
$98
Oct 27, 2024
$98
Oct 27, 2024
eBay
RCA 5691 6SL7 ECC35 Red Base Black Plates Triple Mica D Getter Matched Pair
£299
Jul 7, 2024
£299
Jul 7, 2024
eBay
TWO RCA JAN 5691 (6SL7) - TESTED GOOD
$180
Jun 21, 2024
$180
Jun 21, 2024
eBay
RCA 5691 6SL7 ECC35 Red Base Black Plates Triple Mica D Getter Matched Pair
£299
Dec 12, 2023
£299
Dec 12, 2023
eBay
RCA 5691 6SL7 Red Base Black Plates Triple Mica DD Getter Pair Price
$380
Nov 19, 2023
$380
Nov 19, 2023
eBay
Radio Tubes 5691 6SL7GT 6SL7 RCA Special Red 1976 NOS Matched Pair
$240
Jan 7, 2023
$240
Jan 7, 2023
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