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Re: Drake 2B Instruction Book
I have always wondered about all the odd ball size fuses.? I worked in a very large plant and we had many different fuses from less than one amp up to over 300 amps and voltages from 24 to over 5000
By Ralph Mowery · #85105 ·
Re: Drake 2B Instruction Book
I uploaded a different 2-B manual and schematic to the Files section. /g/DRAKE-RADIO/files/2B_Manual_OCR.pdf and just the schematic from the manual
By Tom Evans · #85104 ·
Re: Drake 2B Instruction Book
You missed a decimal Steve. :) He's looking for 0.6A. "Steve Wedge, W1ES/4 via groups.io" <w1es@...> wrote: -- 73 -Jim NU0C
By Jim Shorney · #85103 ·
Re: Drake 2B Instruction Book
"Richard W2ONE via groups.io" <cowboyhat@...> wrote: This is not a good isea for reasons that have been discussed in depth in forums all across the internet including this one. Best
By Jim Shorney · #85102 ·
Re: Drake 2B Instruction Book
My apologies. That's a FB fuse. I would see no problem using a 1A FB. That's what's used in the R-4(any). A 6A is just insane. Steve Wedge, W1ES Time flies like an arrow. Fruit flies like a banana.
By Steve Wedge, W1ES/4 · #85101 ·
Re: Drake 2B Instruction Book
https://www.amazon.com/FUSE-MINIATURE-EQUIVALENT-GLASS-ACTING-BLISTER/dp/B008UFZRFU/ref=sr_1_2?sr=8-2 Steve Wedge, W1ES Time flies like an arrow. Fruit flies like a banana. Sent with [Proton
By Steve Wedge, W1ES/4 · #85100 ·
Re: Drake 2B Instruction Book
Mouser has them individually but you can also get a 5-pack: https://www.mouser.com/ProductDetail/Littelfuse/0313.600MXP?qs=rkYlxpo0zrH8phPYUSt1bg%3D%3D
By n4buq · #85099 ·
Re: Drake 2B Instruction Book
Hello Gary, So, I have done as you have suggested. First, yep, my fuse was a slow blow 6A instead of a .6A.? Oddly, I cannot find a .6A slow blow on Amazon, so I will have to do a little looking
By Richard W2ONE · #85098 ·
Strain Relief for AC-4
Rather than spending time trying to reinvent the wheel, have any of you installed 16 AWG SJT power cords into an AC-4 using the correct strain relief? I understand that this will involve enlarging the
By Steve Wedge, W1ES/4 · #85097 ·
Re: Help ID'ing Some Misc Flea Market Items
I was thinking the meter may be from one of their 2m mobiles but have no idea which. Steve Wedge, W1ES Time flies like an arrow. Fruit flies like a banana. Sent with [Proton
By Steve Wedge, W1ES/4 · #85096 ·
Re: Supercapacitors - Possible anti-surge device to protect filaments/ heaters
They need a bit of air space round them just like any power resistor. See /g/DRAKE-RADIO/files/TR-7/PS7-Inrush.pdf for examples. "John K5MO via groups.io"
By Jim Shorney · #85095 ·
Re: Supercapacitors - Possible anti-surge device to protect filaments/ heaters
Do you do just mount them under the chassis away from things like electrolytics, etc? I know they are hot when they're running. John K5MO [email protected]> wrote:
By John K5MO · #85094 ·
Re: Supercapacitors - Possible anti-surge device to protect filaments/ heaters
They do wonders for the PS7 THUMP. I find them in scrap PC power supplies. "Steve KL7JT via groups.io" <radiorobots@...> wrote: -- 73 -Jim NU0C
By Jim Shorney · #85093 ·
Re: Help ID'ing Some Misc Flea Market Items
The 2nd pic was an optional rear panel for the TR-4 (and possibly the TR-6?) that facilitated hooking up the TC-6 and/or TC-2 transverters. I have a TR-4 with one on it. The surge protector is what it
By VE7PS · #85092 ·
Re: Supercapacitors - Possible anti-surge device to protect filaments/ heaters
"I decided that it probably wasn't a good idea to keep a bomb in the shack." Good decision! John
By John K5MO · #85091 ·
Re: Compatability
Ralph, The R4B has MUTE, ANT and 4 ohm SPKR connections on theR4B's rear chassis as shown in the picture below. Simply substitute the R4B for the "External receiver" shown on page 2-7 Figure 2-9 in
By Mike W5RKL · #85090 ·
Re: Supercapacitors - Possible anti-surge device to protect filaments/ heaters
Agree with the NTC current limiter comments of '0C and 'RF. You can measure the actual power into the AC-4 with a strangely named "Kill-a-Watt" AC power meter; they work well. TX will be more than RX,
By Steve KL7JT · #85089 ·
Re: Compatability
Thanks Mike I must have missed that in the manual. Sent from my T-Mobile 5G Device Get Outlook for Android<https://aka.ms/AAb9ysg> ________________________________ Sent: Friday, May 23, 2025 10:28:09
By Ralph AD9FM · #85088 ·
Re: Compatability
By the way Ralph, the R4B connections to the TR4C I mentioned are covered in the TR4C manual. 73 Mike W5RKL https://www.w5rkl.com
By Mike W5RKL · #85087 ·
Re: Compatability
Ralph, If you are asking if an R4B can be used as a separate receiver with the TR4C then the answer is yes. Connect the R4B Antenna and ground to the TR4C rear "External Receiver Antenna" socket and
By Mike W5RKL · #85086 ·