Recent content by johnnytek

just replace the out put caps to metal clad..

build your own voltage regulator for THAT circuit using a lm 7808 with a 330 ohm resistor inseries to the ground TO the regulator.. adjust all corresponding viaractor variable capt to center 12 oclock. if need be, use a 10-15 choke in series with the cathode to further your center postition.

there is (by the transformer) another (glass looking) diode next to it.. replace it.

its hot and miss, depending on the doctors pay from the pharma cartel insurance companies.. Philippians 4:13 kjv.

please explain "in detail" thanks.

https://www.seekr.com/search?query=4558+op+amp

try mouser.

i always use a xtal and put it on a relay next to the original socket with the shortest leads and with a 5-50pf trimmer. switch it with a (installed 8 volt regulator and relay-on a switch.

10x better than motorola.. and you can drive them.. thanx.

shield and blue ALWAYS go together..

yes, it matters.. up to depending on the gp area to 2 points.

one is an audio amp, the other is am regulator

check the 4 bit adders.

could be dirty switches, or, never done right, or, what they wanted. is it a 858 or a 8719.

use metal clad caps on the output xformer... start with 800-1000 pf.