WebDec 17, 2008 · The nice thing about your 7k30 LCR is that one can load the pentode with R=7.3kOhms. Thus the gain of the first stage should be more than 10x bigger than for 600Ohm LCR. nothing about the LCR value needs to be etched in stone. http://www.audiodesignguide.com/New2A3/new2A3.html
NEW D3a equivalent on market? diyAudio
http://www.r-type.org/exhib/aaa1543.htm WebJan 6, 2015 · Guest Post: D3a LCR phono built by Claus. Hi! At last years ETF I had the pleasure to meet Claus from Denmark. He built a D3a LCR phono based on a partial kit from me and brought it to the ETF where it was shown in the danish room. The unit was beautifully built and sounded wonderful. Claus put a lot of effort into the chassis and the … gary troxel wikipedia
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WebOct 15, 2024 · This is a diagram of a pentode power amplifier: This amplifier is used to control an electro-pneumatic actuator. Let me describe it a little bit: the input voltage (the control signal) is V3 (-30V < V3 < +30 V) the output is at two pins of C8 (or two anodes of P3 and P4); There are two stages: stage 1 includes P1 and P2, stage 2 includes P3 and P4. WebJan 12, 2012 · triode / pentode. The EL34 data sheet shows that a pentode connection with lower plate voltage than a triode connection produces more power ( 3w more if I remember ). Most amps I have built have their power tubes screen grid at the same potential as the plate, and then are being considered as triodes. WebApr 24, 2024 · It requires 160Vrms to drive the output stage to clipping so it requires a tube capable of idling at 350 or more volts. I also wanted to develop a driver for an SE amp with a follower output stage, which would require a tube that can idle at 500V or more on the plate. EL34 was the cheapest tube I could find that fit the bill. gary troxel singer