A local store sold me a BD243C. Physically it is different (it looks
like a LM7812), but they told me it is equivalent to the 40310. What
do you think?
73,
Franco IZ2OOS
2009/7/11 Joe Pyles epy...@indy.rr.com:
I've replaced the audio output device in a couple of 2C's with the NTE175
and had NO
Good input, Joe. Now we know that the NTE device is safe. That probably
means the Drake circuit used some explicit frequency compensation and didn't
rely on the slow power transistor for stability.
Dennis AE6C
On Fri, Jul 10, 2009 at 10:49 PM, Joe Pyles epy...@indy.rr.com wrote:
I've replaced
NTE175 is listed as replacement.
73, Joe Pyles KC9LAD
At 09:27 AM 7/8/2009, you wrote:
Hi folks,
I am in the need to change the output audio transistor 40310 in my
drake 2-C. Is there a modern equivalent of the 40310 so I can easily
replace it?
73,
iz2oos
I've replaced the audio output device in a couple of 2C's with the
NTE175 and had NO oscillation problems.
73, Joe Pyles KC9LAD
At 11:35 PM 7/10/2009, you wrote:
I do NOT recommend the NTE175. It is high speed high voltage
switching transistor. Because it is a double-diffused device about
The RCA 40310 is a 4A 35V device designed for wide safe operating area up to
29W in audio applications. It's very low cutoff freq of 750KHz strongly
suggests epitaxial base construction which is hard to find today. The Drake
application is being gentle on the device, so you can probably get away
Hi folks,
I am in the need to change the output audio transistor 40310 in my
drake 2-C. Is there a modern equivalent of the 40310 so I can easily
replace it?
73,
iz2oos
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Subject: [Drakelist] equivalent transistor for drake 2-C
Hi folks,
I am in the need to change the output audio transistor 40310 in my
drake 2-C. Is there a modern equivalent of the 40310 so I can easily
replace it?
73,
iz2oos
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