Bottlehead Forum

Bottlehead Kits => Crack => Topic started by: Applemacman on June 10, 2021, 06:01:43 AM

Title: Bootlehrad crack with speedball [resolved]
Post by: Applemacman 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

Title: Re: Bootlehrad crack with speedball
Post by: Paul Birkeland 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. 

Title: Re: Bootlehrad crack with speedball
Post by: Applemacman 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