1-50MHz frequency counter kit from Alibaba - UK Vintage Radio Repair and Restoration Discussion Forum

LA9CHA Thorvald · 21st Jan 2023, 9:45 pm

Hello, as I was working to install the above mentioned counter in a leader LSG11 signal generator, I managed to destroy the 16-628A pic microprocessor, and am loking for a place to obtain a replacement programmed ic, or if someone may have the program and burn a copy. The counter has 5 led numbers and includes an xtal tester.

Terry_VK5TM · 21st Jan 2023, 11:39 pm

The original code is here https://github.com/Ho-Ro/DL4YHF-Sour...ee/main/DL4YHF, all you need is the correct HEX file (there are 3 variants as described in the ASM file) to program a new PIC.

Chrispy57 · 22nd Jan 2023, 2:14 pm

Hi - since the PIC seems to cost between £5 and £10 inc UK postage on EBAY, and a complete kit costs £8.80 inclusive again from a UK seller I wonder if it would be better to just order a new kit and use the PIC if that's all you need?

Terry_VK5TM · 22nd Jan 2023, 11:21 pm

As it is cheaper to buy the kit than the part, buy the kit.

Just to point out, these Chinese clones do not have a protected input for the frequency counter so be careful what you connect to it.

Bazz4CQJ · 23rd Jan 2023, 1:38 am

Those 50MHz counters are very vulnerable to PIC death. I'm not sure whether it is sensitivity to static or just overload on the input. It seems to be an issue with counter modules; too little drive and they don't work, too much and the die!

B

LA9CHA Thorvald · 26th Jan 2023, 11:38 am

Hi and thanks to all of you for advice!

21st Jan 2023, 9:45 pm	#1
LA9CHA Thorvald Pentode Join Date: Dec 2019 Location: Egersund, Norway Posts: 190	1-50MHz frequency counter kit from Alibaba Hello, as I was working to install the above mentioned counter in a leader LSG11 signal generator, I managed to destroy the 16-628A pic microprocessor, and am loking for a place to obtain a replacement programmed ic, or if someone may have the program and burn a copy. The counter has 5 led numbers and includes an xtal tester.

21st Jan 2023, 11:39 pm	#2
Terry_VK5TM Nonode Join Date: Oct 2010 Location: Tintinara, South Australia, Australia Posts: 2,117	Re: 1-50mhz frequency kit from alibaba The original code is here https://github.com/Ho-Ro/DL4YHF-Sour...ee/main/DL4YHF, all you need is the correct HEX file (there are 3 variants as described in the ASM file) to program a new PIC. __________________ Terry VK5TM https://www.vk5tm.com/

22nd Jan 2023, 2:14 pm	#3
Chrispy57 Pentode Join Date: Mar 2020 Location: Rochdale, Greater Manchester, UK. Posts: 206	Re: 1-50mhz frequency kit from alibaba Hi - since the PIC seems to cost between £5 and £10 inc UK postage on EBAY, and a complete kit costs £8.80 inclusive again from a UK seller I wonder if it would be better to just order a new kit and use the PIC if that's all you need?

22nd Jan 2023, 11:21 pm	#4
Terry_VK5TM Nonode Join Date: Oct 2010 Location: Tintinara, South Australia, Australia Posts: 2,117	Re: 1-50MHz frequency counter kit from Alibaba As it is cheaper to buy the kit than the part, buy the kit. Just to point out, these Chinese clones do not have a protected input for the frequency counter so be careful what you connect to it. __________________ Terry VK5TM https://www.vk5tm.com/

23rd Jan 2023, 1:38 am	#5
Bazz4CQJ Dekatron Join Date: Apr 2009 Location: Oxfordshire, UK. Posts: 4,458	Re: 1-50MHz frequency counter kit from Alibaba Those 50MHz counters are very vulnerable to PIC death. I'm not sure whether it is sensitivity to static or just overload on the input. It seems to be an issue with counter modules; too little drive and they don't work, too much and the die! B __________________ Saturn V had 6 millions pounds of fuel. It would take thirty thousand strong men to lift it an inch.

26th Jan 2023, 11:38 am	#6
LA9CHA Thorvald Pentode Join Date: Dec 2019 Location: Egersund, Norway Posts: 190	Re: 1-50MHz frequency counter kit from Alibaba Hi and thanks to all of you for advice!