|
Vintage Amateur and Military Radio Amateur/military receivers and transmitters, morse, and any other related vintage comms equipment. |
|
Thread Tools |
6th Jan 2019, 2:14 pm | #1 |
Heptode
Join Date: Mar 2008
Location: Newmarket, Suffolk, UK.
Posts: 613
|
Daiwa DK210 keyer circuit
Can anyone help with a decent copy of the circuit for this Daiwa DK210 keyer please? Its in the user handbook
There is one on the internet but its unreadable (dk.mods) Or the circuit for the Dewsbury Star Master Keyer MK2? Aagain what is on the web is not really readable and is not the same model either (the ones I have found) The PCBs look identical and its the grid block keying output that isn't keying Thanks 73 Fred G4BWP |
6th Jan 2019, 7:46 pm | #2 |
Heptode
Join Date: Mar 2008
Location: Newmarket, Suffolk, UK.
Posts: 613
|
Re: Daiwa DK210 keyer circuit
Received from G4XRV
Many thanks 73 Fred |
6th Jan 2019, 9:24 pm | #3 |
Heptode
Join Date: Jun 2012
Location: Southeast Norfolk, UK.
Posts: 773
|
Re: Daiwa DK210 keyer circuit
Hi Fred,
Happy New Year. Just a suggestion but if you have trouble with the grid-block keying on one or more of your keyers, I would recommend this kit:- http://wb9kzy.com/keyallhv.htm I use one with my K42 keyboard sender and it works well with grid-block and relay-keyed TXs. 73 Roger/G3VKM |
9th Jan 2019, 5:58 pm | #4 | |
Heptode
Join Date: Mar 2008
Location: Newmarket, Suffolk, UK.
Posts: 613
|
Re: Daiwa DK210 keyer circuit
Quote:
Thanks The DK210 does key a high negative voltage but this one has a fault. Hence the circuit request. Im using WB9KZYs circuit to convert an old 6m valve amp with a -ve voltage on the PTT line to interface with "modern" radios 73 Fred G4BWP |
|
9th Jan 2019, 6:01 pm | #5 |
Heptode
Join Date: Mar 2008
Location: Newmarket, Suffolk, UK.
Posts: 613
|
Re: Daiwa DK210 keyer circuit
More thanks to G4XRV
Having tried his scanner he has loaned me the data sheet and I have made a high resolution, very readable, scan of the circuit. If any one else is in need or wants a file copy please PM your email address 73 Fred G4BWP (Im not sure what his Forum "handle" is though?) |