Comments on: Desk Caller ID Telephone Repaired – Part 2 (Model: GEEPAS GTP7214) https://jestineyong.com/desk-caller-id-telephone-repaired-part-2-model-geepas-gtp7214/ Semiconductors, Test Equipments, Circuit Board Troubleshooting, Electronic Repair Courses and Many More! Wed, 13 Mar 2019 16:37:01 +0000 hourly 1 https://wordpress.org/?v=5.4.19 By: Robert Calk Jr. https://jestineyong.com/desk-caller-id-telephone-repaired-part-2-model-geepas-gtp7214/comment-page-1/#comment-353259 Wed, 13 Mar 2019 16:37:01 +0000 https://jestineyong.com/?p=19079#comment-353259 Good job, Beh.

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]]> By: Albert van Bemmelen https://jestineyong.com/desk-caller-id-telephone-repaired-part-2-model-geepas-gtp7214/comment-page-1/#comment-353249 Wed, 13 Mar 2019 12:49:34 +0000 https://jestineyong.com/?p=19079#comment-353249 The old Dutch PTT T65 telephones still had carbon speakers and microphones which were not todays quality high tone electrets. And carbon is said being a semiconductor. (probably simply because it is inbetween an isolator and being a conductor). No idea why a coil in a microphone or speaker gets a higher resistance. I guess the opossite whould be more likely.

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]]> By: Parasuraman S https://jestineyong.com/desk-caller-id-telephone-repaired-part-2-model-geepas-gtp7214/comment-page-1/#comment-353197 Tue, 12 Mar 2019 13:24:54 +0000 https://jestineyong.com/?p=19079#comment-353197 Well done! Saved a device from dump!

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