There now seems to be an overwhelming demand for tubes......
Between no available Russian tubes and the unknown status of the plant in China that burned down, and the replacement facility status being unclear....there is and will be a shortages of tubes, which actually started before this recent shift in global events..... So buy good vintage tube local here in Canada
It'll be interesting to see which 'dealers' hold the line on pricing, or show back ordered tubes. We know we're not raising our prices - mostly because we're small potatoes in the global market place. Plus we are ethically bound to not be a 'gougers' to all knowledgeable vintage tube clientele
How do you know when your power tubes need replacing?
A: These are the most common signs that tubes need replacement:
Excessive noise (hiss, hum) including squealing or microphonic tubes.
Loss of high end. ...
A muddy bottom end; Sounds like there is too much bass and note clarity is lost.
Erratic changes in the overall volume. ...
The amp doesn't work!
Crackling, squeals and feedback, excessive noise and muddiness or low output are all evidence of tube problems.
Power tubes. The two main symptoms of a power tube problem are a blown fuse or a tube that begins to glow cherry red.
Either are typically indicative of a power tube failure
Tubes that have "set up" for a while often collect gas.
This gas either comes from slow leakage through tube seals or outgassing of tube elements. This is the number one problem with old vacuum tubes.
Another cause of leakage currents are deposits on the insulation inside the tube envelope.
A tremendous reward awaits for tube rollers and for those desiring to enhance their tube systems sound with these vintage 1950-60's NOS tubes!
Lush sounding tubes that will do wonders for your system and guitar tube amps!
All these vintage tubes test in the high NOS range like new!
There are always other fish in sea to sample, so do acquire a few amazing excellent condition pairs while still are available
Many pairs of different brands of 5963 (12AU7) Tubes
These NOS ECC82 / 12AU7 / 5814A / 6189 / 5963 tubes military spec desirable upgraded variant tubes available are:
All 1954-65 12AU7 Tubes:
ALLEN / BEKERMAN / h/p / MARCONI NATIONAL / RCA / ROGERS / SYLVANIA
ECC82-12AU7 made in 1959 USSR by SYLVANIA
ECC82A / 12AU7A ALLEN ORGAN GRADE
-1954 GE 12AU7 with long gray plates & horseshoe getter
-1956 GE 12AU7 with long gray plates & horseshoe getter
-Baldwin 12AU7 factory select organ grade
-Sylvania 12AU7A WA
-RCA 12AU7A WA
-RCA 12AU7A
-Raytheon 12AU7A
ECC82 / 12AU7
5963=12AU7
6189=12AU7WA
5814A / 12AU7A
The 5814A is equivalent to a 12AU7WA, it is ruggedized and redesigned
The filament current raised to 175ma per section versus 150ma per section for a 12AU7.
5814A are computer rated, 5814WA is ruggedized
Medium mu twin triode; high-rel, computer-rated variant of 12AU7, as indicated by A suffix; increased heater current.
Base: Noval, B9A
Filament: Vf 12.6 Volts / If 0.175 Ampere / Indirect / Parallel / series AC/DC
All 12AU7 tubes are rated Vhk=200V, 5814A tubes are rated Vhk=100V.
All made in USA (1957-63)
These are all excellent upgrade variants for 12AU7 tubes,
All tubes tested very strong on our B+K 747 tester
Tubes all showed teat results between 2300 - 2450 where minimum on this tubes is 1175.
Brand new tubes usually measure around 2200.
No leaks or shorts.
Tubes are matched with 7% or less!
All single tubes from $25.00 each
All pairs from $70.00/pair
All tube orders of $250.00 or more includes free shipping to anywhere within Canada!
Payment is by emt
On-line sales only
No cash sales
Payable please only by EMT (Interac e-transfer)
Best regards, stay safe and healthy with G-d's blessings!
