data east pinball power supply HV transistors work well too. i think thy are mje15031 and 15030. you do have to swap the legs. i mount them, and solder jumper leads from the legs to the board. much easier than twisting the legs. ----- Original Message ----- From: colin.w.davies via Techtoolslist <techtoolslist@flippers.com> Reply-To: Technical Tools Mail List <techtoolslist@flippers.com> To: Discussons of vector-based arcade games. <vectorlist@lists.vectorlist.org> Cc: colin.w.davies <colin.w.davies@btopenworld.com>, <techtoolslist@flippers.com> Sent: 12/6/2023 7:19:35 PM Subject: Re: [Techtoolslist] [Vectorlist] Updating - W-G 6100 Vector Monitor FAQ & Guide V1.1 ________________________________________________________________________________ Bd237 and Bd238 seem to work well but you have to shuffle the legs around. (Think pin 2 and 3 are swapped). Cheap and easy to find.Sent from my Galaxy -------- Original message --------From: John Robertson <jrr@flippers.com> Date: 06/12/2023 22:26 (GMT+00:00) To: "Discussons of vector-based arcade games." <vectorlist@lists.vectorlist.org> Cc: techtoolslist@flippers.com Subject: [Vectorlist] Updating - W-G 6100 Vector Monitor FAQ & Guide V1.1 Who is maintaining this? I ask because on page 8 there is a typo - that I've only just realized when I was going through trying to update my WG monitors as we have a pair of SWs that are running WGs (with the LV2000 kits). It says "R701 (1.3K) changed from +/-2%, 1/4W to +/-1%, 5W.(*)" That can't be right, I am certain it should instead say: "R701 (1.3K) changed from +/-2%, 1/4W to +/-1%, 0.5W.(*)" and it would be clearer with: "R701 (1.3K) changed from +/-2%, 1/4W to +/-1%, 1/2W.(*)" It makes no sense otherwise. There simply can't be enough current for a 5W resistor as this is ground biasing the base of a small signal transistor. Then there is the question of Q604/Q704 (MPSU07) transistors upgraded to TO-202 (NTE-49) which looks like another problem as there is no NTE-49 and hasn't been for decades. That was the same as the ECG-49, which was a NPN-Si, 125Vcbo, 2A, Gen Purpose TO-202. Anyone have a workable replacement to save me the lookup time? I'm thinking a Rv1.2 is overdue... John :-#)# -- John's Jukes Ltd. 7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3 Call (604)872-5757 (Pinballs, Jukes, Video Games) flippers.com "Old pinballers never die, they just flip out" _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ftp.flippers.com/TTL/TestEquipment Archive site 2005-Current: https://seven.pairlist.net/pipermail/techtoolslist/ Vectorlist Archives 1997/99 - 2016: https://www.vectorlist.org/ _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ftp.flippers.com/TTL/TestEquipment Archive site 2005-Current: https://seven.pairlist.net/pipermail/techtoolslist/ Vectorlist Archives 1997/99 - 2016: https://www.vectorlist.org/