| |
VK2YX > JVFAX 12.07.96 10:34l 27 Lines 1262 Bytes #-10756 (0) @ WW
BID : 0F0499VK2YX
Read: DC1RWA GUEST
Subj: Help with interface to PC plse
Path: DB0AAB<DB0KCP<DB0CZ<OE9XPI<HB9EAS<HB9PD<HB9IAP<F1IOI<VK2GJB<VK2TGB
Sent: 960711/0450Z @:VK2TGB.#SYD.NSW.AUS.OC #:19606 [Warrimoo] FBB5.15c
From: VK2YX@VK2TGB.#SYD.NSW.AUS.OC
To : JVFAX@WW
Hello ALL
I have a JVFAX interfax, the basic one with the 741 OP amp installed.
Looking at the circuit, one imput of the op amp is tied to ground and the
other one is the AF input.
My PC has one rail tied to +5v and and the spkr output drives low.
WHat is the best way to decouple this ??. WIth Caps, for sure (I think).
Any help would be appreciated. Last time I tried this, I didn't know the
speaker was connected to +5v, you should have seen the smoke !!!!
/-/-/-/-/ \\\|///
| ( o o )
******************|***************oOOO***(_)***OOOo*****************
* *** vy 73 de Peter *** * vk2yx@vk2tgb.nsw.aus.oc (AX.25) *
* QTH : Lakesview, NSW * p.illmayer@sno.mts.dec.com (e-mail) *
* Locator : Earth * pillmayer@mcs.ogo.dec.com (e-mail) *
* Packet : MFJ1278, Alinco * vk2yx@sydney.healey.com.au (e-mail) *
* Servers : All Servers !! * Web Page: *
* AX.25 : Winpack v5.43 * http://www.healey.com.au/~vk2yx *
* The AUSTRALIAN HOME OF WINPACK - CHECK OUT THE WEB PAGE *
********************************************************************
Read previous mail | Read next mail
| |
