I've got some tubes and tweeters for sale.
The tubes are either NOS or very close to it.
1 - Pair of Mullard CV5065, this is the heavy duty version of the 6U8/6U8A; NOS, matched & original boxes. $60
1 - Pair of Telefunken ECF82, this is the European version of the 6U8/6U8A; NOS, matched & original boxes. $75
1 - Pair of Sylvania (black plate) 6681, this is a ruggedized version of the 12AX7 with extremely low microphonics; NOS, matched & original boxes. $100
**SOLD** - Pair of Sylvania 2A3, this pair is extremely rare due to the construction, second only to the single plate; NOS, matched. $150
**SOLD** - Telefunken GZ34 NOS. $75
**SOLD** For the tweeters, here's a description of them ($500):
"These are a pair of early JBL 075 horn tweeters, dating from about 1960. They were just removed from a custom-installed home hi-fi system, where they had been mounted inside a wall since 1962. These are serial numbers 7078 and 19862, and have the eariler, smooth-black finish to the backs.
JBL developed the 075 as a "super-tweeter" to extend the high-frequency range of the larger midrange horns (using i.e. a 375 driver), or to be used as a tweeter in a two-way system with an "extended range" (i.e. D130) bass driver. The physical quality is superb - the front of the horn is machined aluminum, with a huge magnet of about 5 pounds, made from Alnico V. The rated frequency range is "from 2500 cps to beyond the limit of audibility". Its response is very even across its rated 90-degree dispersion angle. They are rated at 16 ohms, but rumor has it that all JBL 075s are the same impedance regardless of whether they say 8 ohms or 16 ohms.
This particular pair was working poorly when removed, and so they were both expertly rebuilt with new JBL diaphragms. The work was done by Slice Speaker Repair in Kansas City, an authorized JBL consumer and professional service center for over twenty years. Unfortunately, plans for their re-use have not materialized, and thus they are being put up for sale. Included, are the clamp-style mounting brackets, which allow a bit of adjustability to match the baffle thickness when they're flush-mounted.
The tweeters' cosmetic condition is outstanding. The front of the horn on both of them is virtually flawless, having no corrosion or pitting. There are some very slight marks on the sides where the bracket was clamped on. The clamps are in good shape, but one surface on each has some of the remains of the cabinet finish stuck to it . . . after all, they were mounted in the same position for over 45 years. This is not at all visible from the front or the back when the clamps are used to flush-mount the tweeters, and should it be visible in other situations, they would be extremely easy to apply a new finish to this surface. I chose to leave them original."
