Glad to hear it worked out well ! Sometimes with a very loose base you can feel where the right position is when carefully moving the base. Then apply the glue and hold everything in place a minute before letting it dry.
yes, some flashes have bigger patch, some smaller and covered by the base.....some have an angle, so you can see an arc at the side but some are absolute vertical like the chrome top flash.You mean on the glass pinch?
I’m in the middle of moving right now and don’t have access to my tubes to compare, but based on the micas I’d say those are 70’s or 80’s Fotons. Decent $5 tube. The ‘51 - ‘56 ribbed plates are much better. Still, not gonna put even those up against any of the top tier Euro tubes, but they synergize nicely in some amps and used to be quite cheap. I liked the sound (a lot) of the ‘50’s production in a couple Schiit amps. Not so much in my Incubus amp. YMMV, ‘cause mine sure did.Those are Fotons of some vintage.... @bcowen can give you the exact details of how empty the vodka bottle was that day.
Not in any way a backup to a Brimar CV1988. There are decent enough for banjo/accordion duets... but not my cup of dull, bland meh sonics.
Yes back to real tubes....OK - back to real tubes again. In these days of ever escalating prices of desirable tubes I have found a garden variety RCA 6SN7GT that IMHO is a top tier tube. This tube should be inexpensive but it is a little hard to find but not because it is rare; I'll explain:
This 6SN7GT tube is from the late sixties. RCA made several different such tubes, but I only found one variant that sounds great. This variant has a little heater wire above the top mica and black parallel plates. All the ones I have seen have red print on the base. There are also rebranded such tubes that should make them even cheaper (I have pair Stromberg-Carlson branded ones - S-C was a radio manufacturer). The problem is that most such tubes when pictured in the ads don't show that little heater wire. Here is a spotters guide:
My tube in action; more pictures below:
If anyone has this variant, please try it and let me know what you think of the sound.
Some nice tubes there. Also you might want to check out Canadian Marconi Radiotron 6SN7/6J5/12J5. The latter are rare, but compare well with the top tier of British Marconi/GEC L63s.Yes back to real tubes....
Recently I got so many different types of RCA GTB and even a GTA. Sadly this late 1960 version with the heater wire is still missing.
Next week I will get a Canadian 6SN7GTB 1967 tall bottle pair with RCA tooling as well.
RCA 6SN7GTB tall bottle short gap, unique with that smaller mics construction. They were made for 6 Months in late 1959 to 1960. These sound very clean. No RCA warmth on these tubes. They are my favourite.
RCA 6SN7GTA 1955 short bottle with double side getter and Canadian 6SN7GTB short bottle with side getter and heater wire on the top mica. Both are on the warmer side. Especially the Canadian tube.
Be careful, as that syrup may clog the sync trap and cause the bathtub capacitor to overflow!Some nice tubes there. Also you might want to check out Canadian Marconi Radiotron 6SN7/6J5/12J5. The latter are rare, but compare well with the top tier of British Marconi/GEC L63s.
A little know factoid* is most Canadian tubes are tastier - coated their heaters with a special thermionic layer of maple syrup.
* little known since I just made it up.
You may be onto something here- a quick google search shows that maple syrup has antioxidant properties- the darker the better.
Oh... only 60 years too late... but Canadian Marconi could have 'advertised' longer-life heaters due to the anti-oxidant properties of maple syrup imbued heaters.
Learn something new every day. But you’re not allowed to talk about them, you can only talk aboot them.Some nice tubes there. Also you might want to check out Canadian Marconi Radiotron 6SN7/6J5/12J5. The latter are rare, but compare well with the top tier of British Marconi/GEC L63s.
A little know factoid* is most Canadian tubes are tastier - coated their heaters with a special thermionic layer of maple syrup.
* little known since I just made it up.
Probably after the disaster of their experiments using stubby Molson bottles for glass envelopes, they were a little gun-shyOh... only 60 years too late... but Canadian Marconi could have 'advertised' longer-life heaters due to the anti-oxidant properties of maple syrup imbued heaters.
.... also, be on the lookout for the mythic, the venerated 'maple leaf getter' 12J5sSome nice tubes there. Also you might want to check out Canadian Marconi Radiotron 6SN7/6J5/12J5. The latter are rare, but compare well with the top tier of British Marconi/GEC L63s.
A little know factoid* is most Canadian tubes are tastier - coated their heaters with a special thermionic layer of maple syrup.
* little known since I just made it up.
Early pairs always have top mica cutouts like shown in th picture. They were produced in 1943 to first weeks in 1944.Can anyone explain how to identify specifically a *1943* Sylvania VT-231? There seems to be no date codes whatsoever.
