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Rca 5691


Strong RCA Red Base 5691 Black Plate Tube

$49.99


Two, RCA 5691 6SL7 black plates reinforcing rods  tubes strong made in 1953 

$76.00


1 5691 RCA Dark Maroon Base HiFi Amplifier Vacuum Tube Code 4/70 Triplett Tested

$59.00


RCA 5691 6SL7GT VT-229 BLACK PLATE 3 MICA MATCH PAIR VINTAGE 1958-59

$159.95


NOS RCA RED BASE 5690 - SUPER RECTIFIER TUBE - COMPANION TUBE FOR 5692 OR 5691

$45.00


Pair of RCA (GE label) 5691 NOS NIB Special Red 1960 Vacuum Tubes

$200.00


RCA Red Base JAN CRC 5691 Vacuum Tube Amplitrex Tested Strong 93/93% Gm

$100.00


5691 RCA CRC USED AUDIO TUBE CHROME TOP RED BASE LOW NOISE 6SL7 33S29

$59.99


JAN CRC 5691 6SL7 6H9C 6N9P TUBES US RCA Matching Pair Test value very strong

$220.91


NOS RCA 5691 JAN red base tube matched pair

$299.00


6SL7 GT VT-229 5691 6N9P 6H9C TUBES IN ORIGINAL BOX NOS US RCA Matched pairs

$101.54


6SL7 GT VT-229 5691 6N9P 6H9C TUBES IN BOX Square Getter US RCA Matched pairs

$74.68


Matched pairs 6SL7 GT VT-229 5691 6N9P 6H9C TUBES IN BOX Square Getter US RCA

$79.14


A pairs 6SL7 GT VT-229 5691 6N9P TUBES IN ORIGINAL BOX NOS US RCA Smoked Glass

$89.56


4 US 6SL7 VT-229 5691 6N9P 6H9C TUBES IN ORIGINAL BOX SYLVANIA RCA TESTED GOOD

$71.64


6SL7 GT 5691 6N9P TUBES IN ORIGINAL BOX NOS US RCA A pairs Square Getter

$67.17


JAN CRC 6SL7 GT VT-229 5691 6N9P 6H9C TUBES IN BOX US RCA Matched pairs

$50.77


6SL7 GT VT-229 5691 6H9C TUBES IN ORIGINAL BOX US RCA Matched pairs Smoked Glass

$80.31


A pairs 6SL7 GT VT-229 5691 6N9P 6H9C TUBES IN ORIGINAL BOX US RCA Square Getter

$67.17