THRERE ARE A FEW E BAY STORES THAT STOCK A LOT OF THEM.
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Thanks to all for the info on where to get a potentiometer. I finally figured
a way of doing things with a series resitor of about 10 watts and a 10k
Potentiometer. This network seems to handle the current in the circuit quite
well because of the very high wattage resistor used in series. I
This Mod is a very good idea. It might be noted however that most
horizontal output transistors have very high voltage ratings but do not have
a lot of current gain (BETA). BETA is the output current divided by the
Base Current. Transistors with higher current gain are available; just
make sure
A.R.S. - WA5AM wrote:
I have ordered a few things from Bry Carling/af4k over the last 8
months or so, and just recently ordered a set of crystals. I have to
say that with all the Internet dealings I've had in the past with
other places of business and the like, Bry is on the spot with email
resp
I second that! I've ordered several rocks from Bry. He is a straight
shooter with an excellent product. In fact, I need to send him a list soon
for the GE.
Rick
I have ordered a few things from Bry Carling/af4k over the last 8
months or so, and just recently ordered a set of crystals. I have
I have ordered a few things from Bry Carling/af4k over the last 8
months or so, and just recently ordered a set of crystals. I have to
say that with all the Internet dealings I've had in the past with
other places of business and the like, Bry is on the spot with email
response and fast as lightn
Any of the old ARRL of West Coast Radio books has schematics for triode amps.
Here is a little something using a similar tube that was popular in the surplus
scene many years ago : http://www.lakeerieba.com/6C21/KW_Amp.htm
Although intended for slop applications, the above amp can be used to per
On 6/11/07, kk4tr <[EMAIL PROTECTED]> wrote:
I was wondering if anyone out there knows of a place that I can get
Potentiometers for my Viking Valiant. Yhe Grid drive control took a dump
yesterday morning and I have been having difficulty finding a place to buy
one either nos stock or even a bran
I was wondering if anyone out there knows of a place that I can get
Potentiometers for my Viking Valiant. Yhe Grid drive control took a dump
yesterday morning and I have been having difficulty finding a place to buy
one either nos stock or even a brand new one. The one that I need is a 25K,
4
I don't have these things, but they came from a swap-list I'm on...
thought maybe someone else might be interested.
I -think- David/WB4VQC is in Austin, Texas
-Geoff/W5OMR
Oscilloscope- Tektronix 547 w/dual&single trace/
/diff amp plugins/cart/cables/probe $69
Linear amps- HF and 6m, sal
On 6/10/07, A.R.S. - W5AMI <[EMAIL PROTECTED]> wrote:
Here are some photos of my new Gates BC-1T project.
Thansk for all the ideas and complements on the 1T guys. I feel a lot
better about my investment now that I see how clean this thing really
is. I will continue to post photos as I get th
crawfish wrote:
I need a schematic of an amp using a single 450TL. I have only one, and need
to use it for something other than a lamp :-).
Joe W4AAB
I never had a schematic for it, but have put B+ through it, once. Tube
draws a
I need a schematic of an amp using a single 450TL. I have only one, and need
to use it for something other than a lamp :-).
Joe W4AAB
- Original Message -
From: "Geoff/W5OMR" <[EMAIL PROTECTED]>
To: "Discussion of AM Radio"
S
It needs a little work, but I'm looking to sell this 450T amplifier,
*with* a good working 450TL.
See pictures at http://w5omr.shacknet.nu:81/~w5omr/hamstuff/450T-amp/
and contact me off-line, if interested.
--
73 = Best Regards,
-Geoff/W5OMR
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K2LNU has two plate transformers. Both are 105 VACinput, 6200 vac output at 2
kVa. $50.00 for the pair. He is in Clarence, NY just east of Buffalo. Reference
QTH ad #601460. Usual disclaimers apply.
Joe W4AAB
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On 6/10/07, A.R.S. - W5AMI <[EMAIL PROTECTED]> wrote:
Here are some photos of my new Gates BC-1T project.
Wow, Brian - I have to echo Rick's comments, that has got to be the
cleanest BC-1T I've ever seen. The two I was offered back in the late
80s wouldn't hold a candle to it, and one of them
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