Lampizator Valve / Tube Rolling Review Thread
- Thread starter Zero000
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Will do for sure and I also got a pair of 46 but waiting for idiotic adapters for more then a month now...my grandmother in Zimbabwe would make them and bring them with Pony Express faster
Sorry, when I say new I mean there are so many available unused at such a low price they really are NOS. Not NOS wannabes
You may hear some pings as the tubes warm up but it does sound really good for the most part. Perhaps a bit of nasality to it but it's fairly pleasant in nature. Otherwise I think it's all good. Microphony not as low as Tesla AD1n but not much touches that grandmaster of a tube in that respect. Sonically I like it very nearly as much but technically I think 6C4C is a tad behind.
Goran finds AD1n a bit dark but 6C4C is not that I would say.
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No it's the same tube.
Note that more 6S4S seem to show up on eBay if you search for 6B4G. Which you can also use. Some nice tubes in 6B4G land at low prices. Think 6A3 with a different base. Since many Lampis can't use 2A3, 6A3 and 6B4G are essentially the same tube but with a 6.3V filament. Best used in the 300B position in stock Lampis.
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This I think is the first time I have heard Sylvania VT-52 running on filament spec and it is sounding excellent. Better than 6C4C without a doubt.
When I first got my Big 7, one of the very first, this was my overall favourite for a very long time.
Like meeting an old girlfriend you know you still love
This runs at 0.5V less than the Western Electric version.
When you have filament voltage control and run the triode at spec, they all look well lit.
Something that is way different to the behaviour of original Big 7. Which was always obvious. But hey, it was still a fun machine
When I first got my Big 7, one of the very first, this was my overall favourite for a very long time.
Like meeting an old girlfriend you know you still love
This runs at 0.5V less than the Western Electric version.
When you have filament voltage control and run the triode at spec, they all look well lit.
Something that is way different to the behaviour of original Big 7. Which was always obvious. But hey, it was still a fun machine
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01A: 5V; 0.25A
12A/112A: 5V; 0.25A
71A: 5V; 0.25A
46: 2.5V; 1.75A (adapter needed UX5 to UX4)
345: 2.5V; 1.5A
Just to update this post a bit with few new types which we can use...
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TMBF1. 4V 0.6A and a bit of a gamble I am not sure if I will be able to run that I'm just hoping I can.
The guy that sold me them included the cute blue Thompson-CSF PTT213F valves pictured, saying they were the best drivers for them.
Very nice of him, especially for the price he sold them to me for.
Will see if I can get them working well in about an hour
They are delightful to look at in the flesh with their unconventional approach. Really quite unique, though not totally. If they won't run I'm keeping them anyway
The guy that sold me them included the cute blue Thompson-CSF PTT213F valves pictured, saying they were the best drivers for them.
Very nice of him, especially for the price he sold them to me for.
Will see if I can get them working well in about an hour
They are delightful to look at in the flesh with their unconventional approach. Really quite unique, though not totally. If they won't run I'm keeping them anyway
It's a no go. I can set a current rating with the selector switch and get a nearly +/- voltage swing of 50%.
But what I can't appear to do is drop the voltage when the current required is a lot less than the switch position. In this case 40%.
Will email the maker.
But what I can't appear to do is drop the voltage when the current required is a lot less than the switch position. In this case 40%.
Will email the maker.
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Very vague try of the empire to strike backTMBF1. 4V 0.6A and a bit of a gamble I am not sure if I will be able to run that I'm just hoping I can.
The guy that sold me them included the cute blue Thompson-CSF PTT213F valves pictured, saying they were the best drivers for them.
Very nice of him, especially for the price he sold them to me for.
Will see if I can get them working well in about an hour
They are delightful to look at in the flesh with their unconventional approach. Really quite unique, though not totally. If they won't run I'm keeping them any
Lovely Goran.
To run TMBF1, I gotta get soldering. The man says:
Hi Justin,
It's not quite that simple, the switch is a 6 way on each wafer and combinations of wafers control the current.
You could use position 5 fir all 1A valves, you would just have more heat on the heatsink with 4V valves.
To make position 1 into a 0.6A you will need to change two resistors.
There are two 0.12 ohm, they are rectangular block white ceramic.
These need to be changed to 0.75 ohms.
ATB
To run TMBF1, I gotta get soldering. The man says:
Hi Justin,
It's not quite that simple, the switch is a 6 way on each wafer and combinations of wafers control the current.
You could use position 5 fir all 1A valves, you would just have more heat on the heatsink with 4V valves.
To make position 1 into a 0.6A you will need to change two resistors.
There are two 0.12 ohm, they are rectangular block white ceramic.
These need to be changed to 0.75 ohms.
ATB
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