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(!!!!!) (Best Pair) 6V6GT Sylvania green leaf coated glass NOS 1940's in white boxes 1-2% matched (38.8ma and 39.6ma) (Same Gm) Fashion Original price was: $159.99.Current price is: $64.00.
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(!!!!!) (Best Pair) 8417 Sylvania NOS 1970's same date codes (117.4ma and 118ma) Supply Original price was: $269.99.Current price is: $108.00.
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(!!!!!) (BEST PAIR) 7591A Sylvania NOS 1968-1971 (72ma and 74ma) Discount

Original price was: $199.99.Current price is: $80.00.

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SKU: US-331801721 Categories: ,
Description

Description

(!!!!!) (BEST PAIR) 7591A Sylvania NOS 1968-1971 (72ma and 74ma)

1 pair) 7591A Sylvania NOS original boxes 1968-1971

1 tube) 72ma Gm=11,200 rebranded RCA 1968 (CC)

1 tube) 74ma Gm=11,350 rebranded GE 1971 (IE)

 

Tested on Amplitrex

Vplate = 300

Vscreen = 300

Vgrid = -10

Good Ma range 50-60

Good Gm range 10,000 – 11,000

 

Recommended for

AUDIO GUILD CORP BONHAM 330 1960’s
Ampeg Gemini II G-15
Ampeg Reverberocket II 1960’s
McIntosh 225
Mcintosh MA230 early 60’s
McIntosh MAC-1500 1965
Scott
Harmon Kardon
Fisher Receivers
Sansui
Sherwood S5000II

McIntosh 225
Fisher 500C 1964
Scott 299C
Scott LK-72
Scott 340B 1964
Univox U305R
Sansui 1000a 1970
Eico ST-70

 

Additional information

Additional information

Title

7591A Sylvania NOS pair
Shipping & Delivery

We accept returns on non-sale items that are in original packaging, unused, and unwashed within 30 days of receipt. Please follow our returns/exchanges process below. If items do not meet our requirements for return, they will be shipped back to you in lieu of a refund. Shipping and handling charges are non-refundable (exceptions may apply).

Returns & Exchanges Process: If item(s) fit within our returns guidelines found in the Returns. Please allow 7-10 business days for the credit to appear on your account after your return is processed.