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Authenticity ~ Quality ~ Value ~ Lifelong ~ Expertise ~ Sterling ~ Integrity ~ Accuracy

NOTICE: The tube prices in this catalog CANNOT be compared to others!! Each tube sold by
V.T.S. has been LABORIOUSLY auditioned, scrutinized, and matched by Andy Bowman in the
V.T.S. Analog Laboratory using National Institute of Standards registered gear.
(See the Testing Laboratory, and Six Things, etc...)

Misc. Small Signal Tubes

Partial listing - more to come.....

[NOTE: Because of the depth of the inventory, this is a partial stock list. Please call for current pricing and availability. Tubes are added regularly and the inventory changes so please call/email us if you have a specific need.]


Type	Manufacturer	Date	Microphonics	Quantity	$ Each	Description

EF-86	Amperex	1950’s	Moving-Mag.	7	Call	Great audio pentode still at reasonable
			Super-Line	12	Call	prices. Amperex seems to have made
						most of these and they made a great
						one. There are four types made in the
						50’s & 60's alone.

EF-86	Amperex	1960’s	Moving-Mag.	5	Call	Second series still the grates.
			Super-Line	8	Call

EF-86	Siemens	1950’s-	Call	Call	Call	Siemens made a very nice version of
		60’s	Call	Call	Call	this tube. Unfortunately 95% of what
						is distributed is the oversize bulb,
						pointy pin shit that is from the later 70s
						& 80s

6GK5	Mullard	1960’s	MM	12	46.00	The finest available example of this
			SL	18	36.00	tube in fact the only other is the RCA
						(below) These tubes were a very late
						frame grid unit (this tube is very similar
						to half a 6DJ8) that are troublesome to
						make. Even "new out of the box" RCA
						or Mullard these tubes are all over the
						place and in every way, Mic. and specs!
						I reject 75% of them at least. This is the
						reason for high price.

6GK5	RCA	1960’s	MM	6	38.00	See above. A bit more neutral sound.
			SL	11	32.00	Light years ahead of GE junk!

6CG7	RCA	1950's	MM	6	56.00	Type-1 with black plates.
			SL	8	48.00	This tube is so good because
						of the great effort put forth by RCA
						to have a stable horizontal oscillator /
						deflector so important to the success of
						television. This is the tube that did it.

6CG7	RCA	1960's	MM	16	46.00	Type-2 the classic side getter version,
			SL	28	42.00	monikered the "clear top" and made far
						more popular by "MUA".

5687	RCA	1960’s	Call	Call	Call	A recent addition to the family of line
						stage and power amp driver tubes
						used by home builders and small,
						nearly home built products. A good
						choice too, it's nice to see these guys
						are using a tube with some transfer area!
						Rusty plates.

5687	Tung-Sol	1950’s	MC	2	44.00	Same as above. The 5687 was a general
			MM	8	36.00	purpose tube for RF power amps,
			SL	7	32.00	cathode follower, and pulsed oscillator
						use. Heavily used in commercial
						electronics since the 50's.

5687	Sylvania	1960’s	Call	Call	32.00	Sylvania’s version of the 5687. A good
						serviceable unit.

6350	RCA	1960’s	Call	Call	34.00 -	Very tough to locate! The orig. from
7044					44.00	the orig. and then tested on
Etc…						the orig. (RCA WT100-A) I have these
						in Federal & RCA. Computer tubes.

6U8	RCA	Call	Call	Call	38.00	Again the orig. from the orig. and then
						tested on the orig. RCA WT100-A and
						you sure as HELL need to test these on
						a WT100-A as only about one in 3 is
						any damn good. Both the pentode &
						Triode sections had grids so close to
						Cathode etc… that could not really be
						made well in the real world. (I.E.)
						Even crisp new in the box from the
						best production days were all over the
						place measurements & performance
						wise.

6U8	Mullard	1960’s	Call	Call	48.00
	GT Britain

6U8	Amprex	1960’s	Call	Call	48.00
	Hall

6U8	Telefunken	1960’s	Call	Call	60.00
	Germany

6GH8-A	RCA	1960’s	Tested low	Call	Call	Another late model, hi tech pentode-
				Reject		triode combo. I recently tested a batch
				Rate of		of 16 of these for a guy. Sourced from
				70%		A.E.S. and didn’t find a single one that
						even reached minimum specs only 4
						were actually RCA (the other 12 were
						GE junk & yucky Sylvania late stuff
						branded RCA) Obviously, rejected
						junk from 25 other people.

6AN8-A	RCA	1960’s	Tested low	Call	Call	Similar tube as above but not as high a
		&70’s				reject rate.

7199	RCA	1960’s	Tested	Call	Call	Similar story to above, if you want to
6BL8	&					roll the dice with a guy who has a
6EA8	Telefunken					service tester and no idea what the hell
Etc…	Etc…					he is doing, have fun But don’t expect
						good consistent results from your
						equipment!

12AY7	RCA	1950’s	MM	9	52.00	A low hum, low mic. tube similar to
		1960’s	MC	10	42.00	12AX7 for high gain audio amps. Here
			SL			is one tube with "low mic" built in that
			L			actually lives up to the claims made by
						the sales dept. There was an incredible
						"inter-departmental" consistency at
						RCA. What the sales dept. claimed it
						could do the engineering and all other
						departments did period.

12AY7	Ken-Rad	1950’s	MM	3	32.00	Only ones I have ever seen.
						Bar type plates.

12AZ7	RCA	1950’s	MM	5	46.00	Very hard to get quality stock.
		1960’s	S-L	8	40.00	A mini type developed & used for
			Line	4	34.00	direct coupled cathode driver circuits
						in audio amps. (Recently used in the
						MAC reissue components.)

12AZ7	Tung-Sol	1950’s	MM	6	32.00	Tung-Sol made a good mini, second
		1960’s		4	22.00	only to RCA.

12BH7	RCA	1950’s	MM