Re: Drake LA-4 Amplifier
Ah, you looked at the link not the pictures. :D I examined the photos carefully and even saved local copies for posterity. Maybe you need new glasses? 73 -Jim NU0C "Rick W4XA via groups.io"
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Jim Shorney
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#77290
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Re: Drake LA-4 Amplifier
If I could build anything close to that level of craftsmanship, I'd be high fiving you all . :-) John K5MO [email protected]> wrote:
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John K5MO
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#77289
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Re: Drake LA-4 Amplifier
I was just looking at the eBay link you provided, Caveat Emptor -- *73/Rick* *W4XA * * Every post is created using Linux * *
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Rick W4XA <myr748@...>
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#77288
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Re: Drake LA-4 Amplifier
You must be looking at a different amp. I've seen a lot of CB amps over the years and this ain't one. It is actually fairly well designed, with plate current metering and a tapped six band tank coil
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Jim Shorney
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#77287
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Re: TR5 steering diode?
Thanks! Mine had a 5 amp and I was just about to head out the door to find some 8 amps. Ed
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Ed KG5UN
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#77286
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Re: Drake LA-4 Amplifier
I had to scroll through the entire thread to figger out what "That Auction Site"? is! Holy Crapoly!? What a piece of Chicken Band? junk it is!! -- *73/Rick* *W4XA * * Every post is created using
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Rick W4XA <myr748@...>
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#77285
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Re: TR5 steering diode?
One of those fuses saved my dumb posterior when I hooked up a TR7 backwards. I have no idea why I would have done such a stupid thing, except that I was talking to the owner at the time! Steve Wedge,
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Steve Wedge, W1ES/4
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#77284
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Re: Drake LA-4 Amplifier
Howard: Yes, I have one of those LA-7's as well - never used it. Don't have a tanker ship! Pic attached of "LA-4" on steroids! Not sure if this is what the LA-4's all looked like or not. There's a LOT
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VE7PS
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#77283
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Re: TR5 steering diode?
Ed, I had to go to the large, original pull-out schematic to verify the fuse size. In fact, it's 5A, not 8A. Every other electronic schematic I checked didn¡¯t have the resolution needed to verify
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Paul Christensen
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#77282
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Re: TR5 steering diode?
Ed, I had to go to the large, original pull-out schematic to verify the fuse size.? In fact, it's 5A, not 8A.?? Every other electronic schematic I checked didn¡¯t have the resolution needed to
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Paul Christensen
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#77281
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Re: Drake LA-4 Amplifier
On Apr 17, 2024, at 10:37 PM, VE7PS via groups.io <ve7ps@...> wrote: ? Jerry: Aha! As I suspected....thanks Jerry. I have an RR-2 product sheet here too but no mention of the LA-4.
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Dale Dean - AF7WH
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#77280
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Re: TR5 steering diode?
I checked it. It is ok.
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Ed KG5UN
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#77279
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Edited
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Re: TR5 steering diode?
Check the suicide diode on the same board to make sure it didn't short. If you are lucky your finals will have survived. 73 -Jim NU0C "Ed KG5UN via groups.io" <maikranze@...> wrote:
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Jim Shorney
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#77278
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Re: TR5 steering diode?
Start with the PS fuse and especially the internal fuse on the INSIDE of the TR5¡¯s rear panel. You¡¯ll need to remove the cover, and possibly the bottom plate for access. The fuse is 3AG 8-Amp.
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Paul Christensen
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#77277
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Re: TR5 steering diode?
Disregard! I pulled the cover and found the blown fus. Ed
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Ed KG5UN
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#77276
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Re: Drake LA-4 Amplifier
That LA-4 (linear) has an amazing front panel.? Wish I could make a Drake panel like that! The perforated cabinet edge takes away points though.? But nice work overall, I like the "modular"
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Gary WB6OGD
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#77275
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TR5 steering diode?
Just unboxed my new to me TR5. Hooked it up using the user supplied power cord and nothing. Checked the power cord (yes I know I should have done this first) and the polarity is reversed. Please tell
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Ed KG5UN
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#77274
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Re: Drake LA-4 Amplifier
Not sure if this is what your taking about, but I have a LA7 600 ohm line amplifier for R7. Howard VE7IGA?Sent from my Galaxy
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Howard VE7IGA
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#77273
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Re: Drake LA-4 Amplifier
Jerry: Aha! As I suspected....thanks Jerry. I have an RR-2 product sheet here too but no mention of the LA-4. That price list sheet is new to me - will print that one for my files. Now...if we could
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VE7PS
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#77272
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Re: Drake LA-4 Amplifier
PETER ¨C See attached the following: 1. Commercial Maritime Price List dated July 15, 1975. The LA-4 Audio Line Amplifier is Model 1228 and priced at $20.00. 2. RR-2 Product Data Sheet dated April
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Jerry Kessler
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#77271
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