Balanced Tubes/Valves. - UK guitar forum for guitar shops, guitar dealers, guitar reviews, guitar technicians, guitar tuition and more

You are not logged in. [Log In] » Forums » UK Guitar Forum » Guitar Amp Forum » Balanced Tubes/Valves.

Who's Online

15 registered (Ape09090, strat man, Bob Gnarly, Lester, Ovals, jules1050) and 252 anonymous users online.

details

Newest Members

lax81, gaz1979, johnp61, Shimmy, eaglanna
9380 Registered Users

Forum Stats

9380 Members
50 Forums
26839 Topics
293692 Posts

Max Online: 390 @ 10/02/12 01:42 PM

Page 1 of 2

Topic Options

Rate This Topic

#288702 - 11/10/11 07:42 PM Balanced Tubes/Valves.
somhairle somhairle Be Nice (I'm New!) Registered: 12/06/11 Posts: 41 Loc: Scotland	I have read about balanced tubes/valves being fitted in the V3 position of a 3 valve preamp set up. As I know nothing about tubes/valves but am trying to learn, what is a balanced tube/valve and must it always be fitted in the V3 position?
Top

Richards Guitars: 5 Tiddington Road, Stratford Upon Avon, Warwickshire, CV37 7AZ - Tel 01789 26 33 33

Click on the Guitar Title To View This Guitar For Sale at Guitars.co.uk. More Guitars For Sale can also be found at Richards Guitars

FeedWind

#288722 - 12/10/11 09:34 AM Re: Balanced Tubes/Valves. [Re: somhairle]
Screaming Dave Screaming Dave Professional Forumite! Registered: 18/08/11 Posts: 272 Loc: Andover, UK	I know about matched sets of valves, would that be the same thing? _________________________ There's no such thing as bad weather, there's only the wrong clothes.
Top

#288725 - 12/10/11 10:18 AM Re: Balanced Tubes/Valves. [Re: Screaming Dave]
somhairle somhairle Be Nice (I'm New!) Registered: 12/06/11 Posts: 41 Loc: Scotland	Don't know, I hve just come across the mention of a balancved valve having been used in the V3 position but don't know if this is a requirement or an option.
Top

#288729 - 12/10/11 11:35 AM Re: Balanced Tubes/Valves. [Re: somhairle]
Screaming Dave Screaming Dave Professional Forumite! Registered: 18/08/11 Posts: 272 Loc: Andover, UK	I have to confess, as a confirmed valve amp user I know woefully little about them. I'm like someone who can drive but doesn't know what the dipstick is for! _________________________ There's no such thing as bad weather, there's only the wrong clothes.
Top

#288731 - 12/10/11 12:19 PM Re: Balanced Tubes/Valves. [Re: Screaming Dave]
somhairle somhairle Be Nice (I'm New!) Registered: 12/06/11 Posts: 41 Loc: Scotland	I've yet to learn how to open the bonnet!
Top

#288736 - 12/10/11 02:36 PM Re: Balanced Tubes/Valves. [Re: somhairle]
Screaming Dave Screaming Dave Professional Forumite! Registered: 18/08/11 Posts: 272 Loc: Andover, UK	Oh yeah, I opened the bonnet once, to continue the metaphor, and nearly electocuted myself! I was fixing a Peavey Classic 30. All that had happened was that one of the links between two PCBs had broken, so took the amp out of the chassis, reparied it, plugged it in and made sure the valves lit up again, then switched it off and loaded it back into the chassis. Shame I left it plugged in and touched one of the live wires while I was struggling with it. Not smart! _________________________ There's no such thing as bad weather, there's only the wrong clothes.
Top

#288741 - 12/10/11 05:08 PM Re: Balanced Tubes/Valves. [Re: Screaming Dave]
somhairle somhairle Be Nice (I'm New!) Registered: 12/06/11 Posts: 41 Loc: Scotland	Good grief! $\:o$
Top

#288742 - 12/10/11 05:18 PM Re: Balanced Tubes/Valves. [Re: somhairle]
Screaming Dave Screaming Dave Professional Forumite! Registered: 18/08/11 Posts: 272 Loc: Andover, UK	My hair was straight before that - curly now! Luckilly I just got a bit of a jolt and made a mental note not to be so mental again, ha ha! _________________________ There's no such thing as bad weather, there's only the wrong clothes.
Top

#288904 - 18/10/11 09:22 PM Re: Balanced Tubes/Valves. [Re: Screaming Dave]
The Tiggs The Tiggs Professional Forumite! Registered: 08/04/10 Posts: 412 Loc: Derby	The V3 position is often (e.g. JCM 800 Marshals) the driver valve - a 12AX7 (for e.g.) contains 2 separate triodes and each one forms each half of the circuit that drives the power amplifier valves in a class AB sort of circuit (often called the phase spitter). If the two triodes in the valve are exactly the same (or if they can be balanced by some external circuitry) the distortion (like THD) will be less. Probably more important for Hi-Fi valve amps than for heavy metal.
Top

#288906 - 18/10/11 10:18 PM Re: Balanced Tubes/Valves. [Re: The Tiggs]
somhairle somhairle Be Nice (I'm New!) Registered: 12/06/11 Posts: 41 Loc: Scotland	Thanks, TT. So does this mean that you need a balanced valve in the V3 position or just a standard valve?
Top

Page 1 of 2

Previous Topic View All Topics

Index Next Topic

Moderator: stickyfiddle

Hop to:

Latest Hot Topics!

line 6 pod, pocket pod or spider IV 75?
by strat man

The jazz corner
by Ape09090

Rowland Jazz Chorus 50 AMP on ebay
by lax81
10:35 PM

30 watt valve amp wanted!
by Ape09090
10:33 PM

FOR SALE: Samick Explorer (Greg Bennett design)
by Ape09090
10:32 PM

NAD - Rivera
by stickyfiddle
09:50 PM

hey from norfolk!
by stickyfiddle
09:47 PM

Gibson's Learn and Master Guitar
by Lotus
09:41 PM

Making faces whilst playing.
by Ape09090
08:23 PM

The Blue Room
by Ape09090
08:20 PM

FOR SALE: Marshall JCM 800 Lead Series 50w head + JCM 900 2x12 cabinet.
by gaz1979
06:02 PM

Introduction : ) !
by natguit
04:46 PM

What is the best guitar-related gift you've ever received (or wish you had)?
by ESBlonde
12:42 PM

Hello from Suffolk and a few Questions
by ESBlonde
12:02 PM

Been busy
by Bry
11:59 AM

Guitar Setups at Richards Guitars

FREE Pre Sale Personalised Setup worth £55

On every guitar sold (Since 1995)

Click on the Images For Further Details

Acoustic Guitar Setup

Electric Guitar Setup

I have also created a page to help explain, in basic terms, why a guitar sold by me will:

Play Better

Sound Better

Feel Better

Look Better

Stay In Tune - Longer

Whether buying a guitar or otherwise, I hope you find the information of value.

Generated in 0.105 seconds in which 0.052 seconds were spent on a total of 15 queries. Zlib compression enabled.

Welcome To The UKs Friendliest Guitar Forum