Francis, I have to look it up but it is the newest version (I received it in early April) . It sits with my electronics (professional) guy after I have given up and after two months and resoldering the board twice he has given up too. Poti is one issue (so the poti actually works and delivers the required voltages) but the bigger issue is relay #5: #5 shows a somewhat erratic behaviour. Sometimes on, sometimes off. Changing the relay didn't help, neither did checking and resoldering. Resistors are...
Hi, I have the same problem with the trim poti and after extensive testing we found that the board has faults. There are also other faults in the board, so at least my version is useless. Thanks Marcus Am 01.07.2021 um 18:43 schrieb John Durgan jdurgan@users.sourceforge.net: Hello, The 0 PC LED is definitely not lighting. I did as you suggested and swapped out K1 K2 and K3 one at a time. the 0 LED still did not light. at the end of this test, relays 1,2&3 were installed in K4,5,& 6 and 4 , 5 , &6...
Hi, I have similar problems and it turns out that the board is faulty. Some connections just do not work. So mine can't be used. Thamks Marcus
Hi, I have built my relay computer but I encounter a couple of problems: - Testing the PC with FF Step and 00 Step all but #5 work. #5 shows a somewhat erratic behaviour. Sometimes on, sometimes off. Changing the relay didn't help, neither did checking and resoldering - Changing frequency works but when I switch to 0 the computer always runs at full speed, irrespective of the potentiometer setting. The potentiometer works and delivers between 0 and 5 V. Any suggestions would be much appreciated!...
--no text body--