jaycars new valve amp

Z

ZACK

Jan 1, 1970
0
Bruce Varley said:
Just why would you run with a high filament voltage, other than to
increase burnout rate so people have to spend more on replacement?
i think its just for show
 
Z

ZACK

Jan 1, 1970
0
Trevor Wilson said:
**The measurements I saw were not taken with an RMS Voltmeter, but the
brightness of the filaments, compared with the same filaments operating at
the correct Voltage was clear and obvious. I'd reckon a 20-25% overload
would be in the ballpark.

dont blame me i only found out after i got it.
you have not told us the voltage thats going
into them, or do i have to find out myself.
i know its a peace of crap.
 
Z

ZACK

Jan 1, 1970
0
Trevor Wilson said:
**The measurements I saw were not taken with an RMS Voltmeter, but the
brightness of the filaments, compared with the same filaments operating at
the correct Voltage was clear and obvious. I'd reckon a 20-25% overload
would be in the ballpark.

dont blame me i only found out after i got it.
you have not told us the voltage thats going
into them, or do i have to find out myself.
i know its a peace of crap.
anything from china is shit.
 
C

clanker

Jan 1, 1970
0
ZACK said:
dont blame me i only found out after i got it.
you have not told us the voltage thats going
into them, or do i have to find out myself.
i know its a peace of crap.
anything from china is shit.
You will have to find out the voltage for yourself.

This will be most interesting.

BTW, my brother's wife is from China and she wants to meet you.
 
C

clanker

Jan 1, 1970
0
ZACK said:
dont blame me i only found out after i got it.
you have not told us the voltage thats going
into them, or do i have to find out myself.
i know its a peace of crap.
anything from china is shit.


You will have to find out the voltage for yourself.

This will be most interesting.

BTW, my brother's wife is from China and she wants to meet you.
 
C

clanker

Jan 1, 1970
0
ZACK said:
dont blame me i only found out after i got it.
you have not told us the voltage thats going
into them, or do i have to find out myself.
i know its a peace of crap.
anything from china is shit.


You will have to find out the voltage for yourself.

This will be most interesting.

BTW, my brother's wife is from China and she wants to meet you.
 
Z

ZACK

Jan 1, 1970
0
Trevor Wilson said:
**Pop down to your local Jaycar and ask them to plug one in. You'll note
that the filaments are running MUCH hotter than normal. Just ask ZACK.

Well ZACK, tell us how bright the filaments are, compared to the filaments
in your Marshall.

to bright.
i did ask jaycar how can you get 25watts out of a
little valve like that, ive made up outputs with this
type of tube and only got 5watts at the most
and then i found out later what was inside
was just a solid state amp.
 
Z

ZACK

Jan 1, 1970
0
clanker said:
You will have to find out the voltage for yourself.

This will be most interesting.

BTW, my brother's wife is from China and she wants to meet you.

why has she got better ideas for this amp.
 
D

David L. Jones

Jan 1, 1970
0
to bright.
i did ask jaycar how can you get 25watts out of a
little valve like that, ive made up outputs with this
type of tube and only got 5watts at the most
and then i found out later what was inside
was just a solid state amp.

You didn't read the product description before you shelled out $300?
http://www.jaycar.com.au/productView.asp?ID=AA0474

"Not a pure valve amp, but a nice sounding one just the same. The
output is solid state with a valve preamp stage. This gives it better
power output with lower hum and distortion. If you like the sound of
valves but can't bring yourself to part with two grand for an amp,
this could be for you. Two sets of stereo inputs plus separate bass
and treble controls."

Dave.
 
S

swanny

Jan 1, 1970
0
Jasen said:
to make them light up brighter?

Why do that when you can stick a couple of LED's behind the valves and make them
look like they are on :)
 
Z

ZACK

Jan 1, 1970
0
clanker said:
She thinks you might qualify as a dim sim.

yum dim sim.

right im going to check these voltages myself
il be back soon
 
Z

ZACK

Jan 1, 1970
0
ZACK said:
yum dim sim.

right im going to check these voltages myself
il be back soon

6p15 pin 1-g3 12volt
pin 2-g1 -2.1volt
pin 3-c -2.1volt
pin 4-h pin 5-h 6.5volt dc
pin 6-g3 12volt
pin 7-anode 12volt
pin 8 n/c
pin 9- 12volt

6n1 pin 1-a1 12volt
pin 2-g1 -1.2volt
pin 3-c1 -1.3volt
pin 4h pin 5h 6.5volt dc
pin 6-a2 12volt
pin 7-g2 -6.1volt
pin 8-c2 -6.1volt
pin 9-int/sh

takein with digital meter, if you remove the tubes
one by one sound stops, so the input gos into
these tubes to the output somehowe, idont have
a schematic to se howe thay are wired il check
that out later.
 
Z

ZACK

Jan 1, 1970
0
clanker said:
She thinks you might qualify as a dim sim.

mmmmmmmmmmmm dim simmm

right im going to check these voltages myself
ill be back soon

6p15 pin 1-g3 12volt
pin 2-g1 -2.1volt
pin 3-c -2.1volt
pin 4-h pin 5-h 6.5volt dc
pin 6-g3 12volt
pin 7-anode 12volt
pin 8 n/c
pin 9-g2 12volt

6n1 pin 1-a1 12volt
pin 2-g1 -1.2volt
pin 3-c1 -1.3volt
pin 4h pin 5h 6.5volt dc
pin 6-a2 12volt
pin 7-g2 -6.1volt
pin 8-c2 -6.1volt
pin 9-int/sh

takein with digital meter, if you remove the tubes
one by one sound stops, so the input gos into
these tubes to the output somehowe, idont have
a schematic to se howe thay are wired il check
that out later.
 
C

clanker

Jan 1, 1970
0
ZACK said:
mmmmmmmmmmmm dim simmm

right im going to check these voltages myself
ill be back soon

6p15 pin 1-g3 12volt
pin 2-g1 -2.1volt
pin 3-c -2.1volt
pin 4-h pin 5-h 6.5volt dc
pin 6-g3 12volt
pin 7-anode 12volt
pin 8 n/c
pin 9-g2 12volt

6n1 pin 1-a1 12volt
pin 2-g1 -1.2volt
pin 3-c1 -1.3volt
pin 4h pin 5h 6.5volt dc
pin 6-a2 12volt
pin 7-g2 -6.1volt
pin 8-c2 -6.1volt
pin 9-int/sh

takein with digital meter, if you remove the tubes
one by one sound stops, so the input gos into
these tubes to the output somehowe, idont have
a schematic to se howe thay are wired il check
that out later.
Now read where someone (infinitely) more clever measured the voltages
with a CRO and got a *real* heater voltage figure - and reason why.
 
A

Alan Rutlidge

Jan 1, 1970
0
swanny said:
Why do that when you can stick a couple of LED's behind the valves and
make them
look like they are on :)

That's already been done by some commercial manufacturer. What a bloody
con!
 
Z

ZACK

Jan 1, 1970
0
clanker said:
Now read where someone (infinitely) more clever measured the voltages with
a CRO and got a *real* heater voltage figure - and reason why.

what is it then tell me.
it differs when tube is out, i did these with them in.

why would it be any different to the others measured
with the same meter.
 
Z

ZACK

Jan 1, 1970
0
clanker said:
Now read where someone (infinitely) less clever "NO NEED FOR
INSALTS"measured the voltages with a CRO and got a *real* heater voltage
figure - and reason why.

what is it then tell me.


why would it be any different to the others measured
with the same meter.
 
Z

ZACK

Jan 1, 1970
0
clanker said:
Now read where someone (infinitely) "NO NEED FOR INSALTS"measured the
voltages with a CRO and got a *real* heater voltage figure - and reason
why.

what is it then tell me.
never mind i took another measure and reads
ubout 20volts thats with valves out.
bloody to mutch, im going to change it
with a 6.3 tranny.
 
Z

ZACK

Jan 1, 1970
0
clanker said:
Now read where someone (infinitely) "NO NEED FOR INSALTS"measured the
voltages with a CRO and got a *real* heater voltage figure - and reason
why.

what is it then tell me.
never mind its ubout 20volts.
with valves out.
to bloody mutch, i will se how a 6.3 tranny gos.
 
Top