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[petehall347]

i would replace all those fusible resistors with metal film ....

[petehall347]

take it apart and take some nice pictures of it . then post them here ....

[petehall347]

try charging a different device...

[petehall347]

d9 d10 is it ? remove one and use resistor and 2x 9v batteries and volt meter ....

[petehall347]

what is the actual gains by doing it ? i am long out of touch with windows . i got stuck at 7 ....

[petehall347]

get some proper white stuff for the job . all that arctic silver stuff is not right for amplifiers...

[petehall347]

post pictures of it...

[petehall347]

now clean the rotary switch ....

[petehall347]

bad connection maybe...

[petehall347]

first try a new battery...

[petehall347]

these things

[ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3620090}[/ATTACH]...

[petehall347]

yep it needs a good old looking at and any substitute transistors carefully selecting...

[petehall347]

be very careful with those bias diodes that are screwed to the heat sink .the wires tend to break off right next to the body and are hard to find new ones and also not easy to fix ....

[petehall347]

looks hot here [ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3618185}[/ATTACH] [ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3618186}[/ATTACH]looks hot here [ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3618185}[/ATTACH] [ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3618186}[/ATTA...

[petehall347]

https://[url]https://www.falstad.com...pnp.html[/url]

[petehall347]

you now somehow have problems with the protector circuit . or your meter was on millivolts ....

[petehall347]

could it be something silly like it needs enabling ....

[petehall347]

what is this solder blob ? [ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3605904}[/ATTACH]...

[petehall347]

short-circuiting the motherboard... sort of answers your own question...

[petehall347]

not many places set up to deal with them . l looked into setting up a place to recycle them . there are lots of hoops to jump through plus it costs lots of money . looks maybe lucrative if done correctly . the chemistry changes inside them and create new things that are wanted . cant remember what right now .