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June 16, 2021, 03:50:15 AM

Author Topic: Bootlehrad crack with speedball [resolved]  (Read 55 times)

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Offline Applemacman

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Bootlehrad crack with speedball [resolved]
« on: June 10, 2021, 06:01:43 AM »
Hv had to replace the leds on the small tube before going any futhur and connecting headphones was wondering if the below voltages are in spec.

1.  71 volts
2.  152.2 volts
3.   0 volts
4.   153.3 volts
5.   0 volts.   This concerns me
6.   0 volts
7.   95 volts
8.   0 volts
9.   96.9 volts
10. 0 volts

OA. 70.1 volts
IA.  155.8 volts
AB.  0 volts
IB.   155.9 volts
OB.  72.3 volts

Im concerned about 5 as all others seem in range. I had to replace the leds because i changed the tube socket and in the process the old leds legs snapped Please advised
« Last Edit: June 10, 2021, 09:33:13 AM by Paul Birkeland »

Offline Paul Birkeland

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Re: Bootlehrad crack with speedball
« Reply #1 on: June 10, 2021, 07:01:38 AM »
OB on the small PC board connects to terminal 5.  You have 72.3V at OB, so you should also have 72.3V at terminal 5.

The presence of the correct voltages on terminals 7 and 9 tells me that you have 72.3V at terminal 5, I would suggest double checking your measurements. 
Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline Applemacman

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Re: Bootlehrad crack with speedball
« Reply #2 on: June 10, 2021, 07:32:10 AM »
Hi your right i do i wasnt making a good connect with the meter. Thank u so much