No.
multimeter setting
black probe
red probe
volts
circuit place
8
dc voltage, 1000V
earth post
choke, pin 1
495V choke, pin 1
9
dc voltage, 1000V
earth post
choke, pin 2
460V point A
10
dc voltage, 1000V
earth post
positive terminal of C5
400V point B
11
dc voltage, 1000V
earth post
PSU2, tag10
195V point C
12
dc voltage, 200V
earth post
PSU2 , tag20
-35V
point D
13
dc voltage, 1000V
earth post
PSU2, tag16
-195V
Point E
14
dc voltage, 200V
earth post
V1, pin 6
175V V1, anode
15
dc voltage, 200V
earth post
V1, pin 1
125V V1, g2
16
dc voltage, 20V
earth post
V1, pin 3 & 8
2.7V
V1,cath. & g3
17
dc voltage, 200V
earth post
V3, pin 2 & 7
-32V
V3, grids
18
dc voltage, 1000V
earth post
V3, pin 1 & 9
195V
V3, anodes
19
dc voltage, 1000V
earth post
V3, pin 3 & 6
-23V
V3, cathodes
20
dc voltage, 1000V
earth post
V5, pin 1
450V
V5, anode
21
dc voltage, 200V
earth post
V5, junction of R39 & R41
57V
V5, cathode
22
dc voltage, 200V
earth post
V5, pin 2
-23V
V5, grid
23
dc voltage, 200V
earth post
V2, pin 6
175V V2, anode
24
dc voltage, 200V
earth post
V2, pin 1
125V V2, g2
25
dc voltage, 20V
earth post
V2, pin 3 & 8
2.7V
V2,cath. & g3
26
dc voltage, 200V
earth post
V4, pin 2 & 7
-32V
V4, grids
27
dc voltage, 1000V
earth post
V4, pin 1 & 9
195V
V4, anodes
28
dc voltage, 1000V
earth post
V4, pin 3 & 6
-23V
V4, cathodes
29
dc voltage, 1000V
earth post
V6, pin 1
450V
V6, anode
30
dc voltage, 200V
earth post
V6, junction of R39 & R41
57V
V6, cathode
31
dc voltage, 200V
earth post
V6, pin 2
-23V
V6, grid
pick list
page 10
Glasshouse
300BPSE 01/05/04
play a tune
If all measurements are correct you have a successfully built amplifier and you are ready to play some music. Well
done and enjoy your Glasshouse amp. If you have experienced any problems please contact Hi-Fi Collective, we are
here to help you.
with all testing done you can now fit the extension rod into the selector. Due to the close
proximity of the rod to PSU3, measure 3cm up from one end of the rod. Starting here wrap
at least 3 layers of electrical tape going up 6cm.
Fit the couplier onto the shaft of the selector and with a flat head screw driver fix the
couplier to the selector shaft. Fit the rod through the hole in the front panel and fix to the
other half of the couplier.
electrical tape
flat head screw driver
page 15 & 16, picture booklet
the following tests require the valves to be fitted, speakers/dummy loads to be attached and no signal input.
You will be measuring all under load test points. All test points as a rule will, at first, measure higher than the stated
voltages, but as the valve heaters warm up and the valve begins to conduct, the voltage will fall. The exception being
denoted by **, where the voltage will rise from 0Vs to the intended voltage.
right channel
left channel
fitting of selector extension rod (300BSEi only)
d. with load and valves inserted test
