| NOS 6NC3 vs 6N3C-E Output Tubes [message #97648] |
Sun, 21 April 2024 10:47  |
kasperbergholt
Messages: 44
Registered: August 2021
Location: Copenhagen, Denmark
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Clever people,
I'm currently using a set of Russian 6П3С-E tubes in my Leben amplifier (as mentioned in an older thread here).
They sound good, but not as different from the stock Sovtek 5881/6L6WGC it came equipped with from the factory.
I'm planning to buy a few extra sets, though, and in that context, I came across several quads of 6П3С (no -E suffix) at a favorable price and with significantly older production dates and tube shape (1960s onwards).
According to Radiomuseum, the specs for 6П3С are as follows:
VA=250V, VG2=250V, VG1=-14V, IA=72mA, IG2=5V, S=6mA/V, K(µ)=150, Ri=25000Ω, Ra=2500Ω, Po=5.5W, P=20.5W, Capacité entre G/A=1pF
I find it difficult to interpret the datasheet for 6П3С-E (link to data on Radiomuseum).
Both types are said to be related to the 6L6G; 6L6GA; 6L6_DDR and 6Л6С, with 6П3С-E being the 'ruggedized' version of 6П3С.
Is there anyone who can shed some light on how different the two types of tubes are?
And whether there might be any risk associated with running an older set of 6П3С?
Thanks in advance,
Kasper
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