for an upcoming project i found a couple of funny Eimac-tubes. Eimac is known for its quality stuff....so i would like to give it a try.
It's the 35TG (the same characterisitcs as the 35T but with the grid-connection popping out on the side).
I already "collected" some of these beautifully made tubes and i discovered that there were diferences:
- zirconium getter not on all tubes;
- different stamps;
Maybe you can help me out finding the correct ages of these tubes and even have more of these goodies to buy/swap/whatever. Any information on them is great.
Amplifier-wise: i'm going to make a ultra-parafeed 35TG with a 6HV5 as driver. This two-stage amp on 800 ~1000 Volt should be smaller than my current 833-beasts. My wife banished these from the living room.....but allowed my tube-hobby there.....when smaller. The smaller should be no problem; currently it's 280 kg and 4-chassis for the power-amplifier....so there is a broad margin to work within.
Suggestions for a nice amplifier ? Do you have experience with this tube ? It simply looks stunning; characteristic-wise it's a A2-tube....ideas ?
Looking forward to your replies. I'll submit a couple of posts with the current three different models i have.
Eimac 35TG "type 1"
Here's the first type Eimac 35 TG
The stamping is with flowing letters. Only: Eimac 35 TG Made in U.S.A.
The innards of the tube is only pure tantalum (no getter)
No stamping on the base
Eimac 35TG "type 2"
Here's the second type Eimac 35 TG
The stamping on the glass:
Reg. u.S. Pet. Off.
Made in U.S.A.
The stamping on the base:
made in u.s.a.
Pure tantalum innards; no getter
Eimac 35TG "type 3"
And currently the last type 35 TG....hopefully not the last.......
Eimac (in nice lettering)
On the base
San Bruno Calif. U.S.A.
Reg. U.S. Pat. Off.
And now new:
NO cooling fins on the anode/plate
The plate/anode seems to be covered in light gre-ish getter (which seems to be zirconium which was used often for that purpose)
Eimac 35TG "type 1" BOX
Maybe the box with tyoe 1 will help ?
Small box, no stamps
Eimac 35TG "type 2" BOX
As for the type 2 35TG box:
larger box, patent numbers on the label.
There is a faintly readable stamp on the box:
Order No: 15359...unreadable
Acceptance date 2-29-45
Eimac 35TG "type 3" BOX
last box for the type 3 35TG
Huge box...fat great than the others. And not in plain carton-colour....but yellow/red !
|All times are GMT. The time now is 10:16 AM.|
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio