ppj34 Posted July 22, 2020 Share Posted July 22, 2020 Hello! I recently bought an old saba videoplay console (equivalent to a fairchild channel I think). As I no longer have an antenna socket, I decided to make a composite video card to connect and test this console. On the web, I found the following electronic diagram. Looking for the right components, I understood that SMD components are used, but they are too small and not suitable for simple mounting on a test mounting plate. So I would like to know what to replace them with. For the resistors and the capacitors, I think it's not complicated, but for the 3 transistors as well as the diode D1, I don't know what to choose. Could someone please let me know? Quote Link to comment Share on other sites More sharing options...
+fdr4prez Posted July 22, 2020 Share Posted July 22, 2020 The 1N4148 diode is a common diode that is available in through hole packages. Just grab one. The BC848B transistor is a bipolar NPN transistor, so maybe one of these through hole version would be OK: Digikey Search Quote Link to comment Share on other sites More sharing options...
ppj34 Posted July 23, 2020 Author Share Posted July 23, 2020 Hi! Thank you very much for your answer. It helped me. After researching DigiKey and other sites, it would appear that the equivalent transistors are the BC549B for the BC848B and the BC559B for the BC858B. For the diode, I have some in reserve of this model. 2 Quote Link to comment Share on other sites More sharing options...
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