RJH wrote:

My 20 year old Rose valve preamp has started making a 'whooshing' sound,
varies in intensity, with a steady rush of background hiss. Might it be
the valves? Everything lights up, and I've had the back off and all
looks in order.


** After 20 years, it is time you replaced all the valves.

I can find no details on the net about the unit other than it uses four small valves, possibly ECC83s or 12AX7s.

The noise you describe is a typical valve fault.


..... Phil

On 14/03/2015 00:18, Phil Allison wrote:
RJH wrote:

My 20 year old Rose valve preamp has started making a 'whooshing' sound,
varies in intensity, with a steady rush of background hiss. Might it be
the valves? Everything lights up, and I've had the back off and all
looks in order.


** After 20 years, it is time you replaced all the valves.


Yes, I'd better bite the bullet I suppose. Prices seem to vary widely (4
x National ECC82) - this seems to be about the cheapest:

http://www.rapidonline.com/electroni...de-valve-35348


I can find no details on the net about the unit other than it uses four small valves, possibly ECC83s or 12AX7s.


It's a Rose RV23-S. I got it on ebay for less than £100 IIRC, with
matching power amp, new.

I think they closed about 10 years back. Look very nicely made to me.

The noise you describe is a typical valve fault.


Grand, thanks.


--
Cheers, Rob

On 15/03/2015 20:58, RJH wrote:
On 14/03/2015 00:18, Phil Allison wrote:
RJH wrote:

My 20 year old Rose valve preamp has started making a 'whooshing' sound,
varies in intensity, with a steady rush of background hiss. Might it be
the valves? Everything lights up, and I've had the back off and all
looks in order.


** After 20 years, it is time you replaced all the valves.


Yes, I'd better bite the bullet I suppose. Prices seem to vary widely (4
x National ECC82) - this seems to be about the cheapest:

http://www.rapidonline.com/electroni...de-valve-35348


Ordered from Rapid last night, arrived lunchtime, amp now working fine.

Many thanks for your help.

--
Cheers, Rob

RJH wrote:
Phil Allison wrote:

RJH wrote:

My 20 year old Rose valve preamp has started making a 'whooshing' sound,
varies in intensity, with a steady rush of background hiss. Might it be
the valves? Everything lights up, and I've had the back off and all
looks in order.


** After 20 years, it is time you replaced all the valves.


Yes, I'd better bite the bullet I suppose. Prices seem to vary widely (4
x National ECC82) - this seems to be about the cheapest:

http://www.rapidonline.com/electroni...de-valve-35348


Ordered from Rapid last night, arrived lunchtime, amp now working fine.

Many thanks for your help.



** Valves are made to plug into sockets for a reason ...




..... Phil

On 18/03/2015 3:02 PM, Phil Allison wrote:
RJH wrote:
Phil Allison wrote:

RJH wrote:

My 20 year old Rose valve preamp has started making a 'whooshing' sound,
varies in intensity, with a steady rush of background hiss. Might it be
the valves? Everything lights up, and I've had the back off and all
looks in order.


** After 20 years, it is time you replaced all the valves.


Yes, I'd better bite the bullet I suppose. Prices seem to vary widely (4
x National ECC82) - this seems to be about the cheapest:

http://www.rapidonline.com/electroni...de-valve-35348


Ordered from Rapid last night, arrived lunchtime, amp now working fine.

Many thanks for your help.



** Valves are made to plug into sockets for a reason ...

**On a related matter: I used to love speaking to customers who were
considering purchasing Brand X valve amp. When prompted, they claimed
that it came with a very generous (1, 2, 3) year warranty. "How long was
the warranty on the valves." I would ask. "Oh, 90 days." Was the usual
reply. "How much to replace all those KT88s?" "Dunno, maybe a couple of
grand."

Imagine trying to sell a solid state amp, but only providing a 90 day
warranty on the transistors...

Sheesh!


--
Trevor Wilson
www.rageaudio.com.au

---
This email has been checked for viruses by Avast antivirus software.
http://www.avast.com

Phil Allison wrote:


** Valves are made to plug into sockets for a reason ...


**On a related matter:


** I bet it is not.


I used to love speaking to customers who were
considering purchasing Brand X valve amp. When prompted, they claimed
that it came with a very generous (1, 2, 3) year warranty. "How long was
the warranty on the valves." I would ask. "Oh, 90 days." Was the usual
reply. "How much to replace all those KT88s?" "Dunno, maybe a couple of
grand."


** As if they would all fail at once after only 90 days.

Massive straw man fallacy.

The only kind of logic TW ever uses.

Still hate the Sony CDP101 - Trev ?

Course you do.



Imagine trying to sell a solid state amp, but only providing a 90 day
warranty on the transistors...


** Another idiotic straw man fallacy.

TW breathes and dines on them.

The life blood of all snake oil salesmen, worldwide.




..... Phil

On 18/03/2015 11:26 PM, Phil Allison wrote:
Phil Allison wrote:


** Valves are made to plug into sockets for a reason ...


**On a related matter:


** I bet it is not.


I used to love speaking to customers who were
considering purchasing Brand X valve amp. When prompted, they claimed
that it came with a very generous (1, 2, 3) year warranty. "How long was
the warranty on the valves." I would ask. "Oh, 90 days." Was the usual
reply. "How much to replace all those KT88s?" "Dunno, maybe a couple of
grand."


** As if they would all fail at once after only 90 days.

**Unlikely, but big power valves rarely last 5 years in many big power
amps. Those same amplifiers are often supplied with a '5 year warranty'.
Since the valves are not covered, that makes the warranty virtually
worthless. It is a con-job. As are most valve amps.


Massive straw man fallacy.

The only kind of logic TW ever uses.

Still hate the Sony CDP101 - Trev ?

**The CDP101 was a pretty decent player back in 1983. Later models are
significantly better, sound-wise. See if you can locate a Marantz CD80
(ca. 1990) and have a good listen. Easily outperforms your CDP101
(sonically). In fact, the CD80 will easily outperform almost ANY player
at any price.


Course you do.



Imagine trying to sell a solid state amp, but only providing a 90 day
warranty on the transistors...


** Another idiotic straw man fallacy.

**Why? Valves are the active devices in a valve amp. Transistors are the
active devices in a solid state amp. Why should valves be excluded from
the warranty on a product? THAT is the real con. Valve amp buyers have
been sucking up the lies for years.


--
Trevor Wilson
www.rageaudio.com.au

---
This email has been checked for viruses by Avast antivirus software.
http://www.avast.com

In article , Phil
Allison scribeth thus
RJH wrote:
Phil Allison wrote:

RJH wrote:

My 20 year old Rose valve preamp has started making a 'whooshing' sound,
varies in intensity, with a steady rush of background hiss. Might it be
the valves? Everything lights up, and I've had the back off and all
looks in order.


** After 20 years, it is time you replaced all the valves.


Yes, I'd better bite the bullet I suppose. Prices seem to vary widely (4
x National ECC82) - this seems to be about the cheapest:

http://www.rapidonline.com/electroni...-triode-valve-
35348


Ordered from Rapid last night, arrived lunchtime, amp now working fine.

Many thanks for your help.



** Valves are made to plug into sockets for a reason ...




.... Phil


Yep .. EY51 anyone....

--
Tony Sayer

"tony sayer" wrote in message
...
In article ,
Phil
Allison scribeth thus
RJH wrote:
Phil Allison wrote:

RJH wrote:

My 20 year old Rose valve preamp has started making a
'whooshing' sound,
varies in intensity, with a steady rush of background hiss.
Might it be
the valves? Everything lights up, and I've had the back off
and all
looks in order.


** After 20 years, it is time you replaced all the valves.


Yes, I'd better bite the bullet I suppose. Prices seem to vary
widely (4
x National ECC82) - this seems to be about the cheapest:

http://www.rapidonline.com/electroni...-triode-valve-
35348


Ordered from Rapid last night, arrived lunchtime, amp now working
fine.

Many thanks for your help.



** Valves are made to plug into sockets for a reason ...




.... Phil


Yep .. EY51 anyone....


As young as that? You're never alone with a 5L4G or 807!


--
Woody

harrogate3 at ntlworld dot com

Ordered from Rapid last night, arrived lunchtime, amp now working
fine.

Many thanks for your help.



** Valves are made to plug into sockets for a reason ...




.... Phil


Yep .. EY51 anyone....


As young as that? You're never alone with a 5L4G or 807!



Yess .. used to have four of they 807 paralled up on 207 metres on the
medium raveband, then graduated to 813's then QQV06-40A's then solid-
state..
--
Tony Sayer