John Curl's Blowtorch preamplifier part II

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JN,
Been out most of the day so coming back late to the conversation. Have you ever looked at some of the oily woods like Teak for those gears, it looks nice and has some lubricity to it. Wouldn't recommend the Coco Bollo as it will give you a nasty rash when you work with it but it sure is pretty. Padauk is another pretty colored wood.
 
Beware of bowling woods….many were made of fruit woods - such as cherry. LV has always been expensive and bowling people were usually from the lower income brackets, so cheaper woods were more common. All forms - not just Crown Green' of bowling used real wood until 'Hensilite' came along. Best source in UK is probably eBay.

They might be from the flat cap brigade, but in Yorkshire where I spent a lot of my formative years, bowling fanatics where that, fanatical about bowling and fanatical about going t'club after, and in one instance they had a portable indoor green for when it was to wet. We might be poor but we'll never scrimp on our whippets and balls:D

I used crown green bowling so our cousins from over the pond would not get mixed up, like football and soccer.
 
JN,
Been out most of the day so coming back late to the conversation. Have you ever looked at some of the oily woods like Teak for those gears, it looks nice and has some lubricity to it. Wouldn't recommend the Coco Bollo as it will give you a nasty rash when you work with it but it sure is pretty. Padauk is another pretty colored wood.
No, I haven't. I've just purchased kd from two online sources, they have limited types. When I become reasonably good at working the wood, I'll be trying thing like ebony, zebra and the such. I've only found them in hunks which require I do more processing up front to make a blank. At least I get sheets in 1/8, 1/4, 1/2, and 3/4 for now..

They might be from the flat cap brigade, but in Yorkshire where I spent a lot of my formative years, bowling fanatics where that, fanatical about bowling and fanatical about going t'club after, and in one instance they had a portable indoor green for when it was to wet. We might be poor but we'll never scrimp on our whippets and balls:D

I used crown green bowling so our cousins from over the pond would not get mixed up, like football and soccer.
Um, that doesn't sound like the bowling I know, which is tenpins, duckpins, candlepins.:confused:

jn
 
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"How about Adyton, I never heard of them but they claim no instrument can measure the output impedance (probably because it's a moving target). Heroic output currents and a price that would make you wish you had invested in an Oslo flat 30yr. ago."

My goodness, you dug deep to find that big of esoterica. The accompanying 'prose' is fabulous!
 
Marra

Being flat cap Irish from Fenagh - the home of modern day coursing - I leave the Whippets to you fellas and fashion conscious ladies. Real dogs are much bigger and mostly called Shamus.

I played a variant of Crown Green whilst living in London: the green was dished rather than crowned and the woods used all had heavy bias (12 - 14). The play was across the diagonals. You had to find good woods and have them re-profiled....they would turn on that green at up to 90 degrees. [ Quite a few members were well known musicians...Bobby Tench a world class guitarist and Roger Chapman of Family fame among them....even Jimmy Webb played as a guest! ]
 
As a general note, with the demise of Audio and HPR, it's just about impossible to find reliable cartridge measurements any more. This is the gaping hole in Stereophile's otherwise good measurement regime.

We have ultrasonic cleaners for styli.

It may be possible to build an accurized 3-axis motional device. Something we can drop a stylus tip into, and then run a standardized signal package through it. Do a calibration and a post measurement check, to cover any variance during the test phase.

This is quite likely doable, in the same way as making an actual standardized/stable/repeatable motional 'motor' for building a standardized speaker load/model.

I could probably do it, but someone would have to pay me for the bother. Yes, I do realize the complexity of the challenge.
 
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