blast from past
in [Design]
|
Prev: Baxandall class D oscillator, can it produce a triangle like waveform?
Next: How to fix PS conducted interference triggers RCD?
From: Joerg on 26 Jul 2010 19:33 krw(a)att.bizzzzzzzzzzzz wrote: > On Mon, 26 Jul 2010 12:29:43 -0700, Joerg <invalid(a)invalid.invalid> wrote: > >> Joel Koltner wrote: >>> "John Larkin" <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote in >>> message news:lthr4610pin79ldpnflqu3kd23p3g7lqgp(a)4ax.com... >>>> A sheet of kiss-cut peel-off vinyl letters from Flax, the nearby art >>>> supply store. They'll eventually rub off, so I'll turn it over to >>>> testing and let them pretty it up. >>> If you spray some clear acrylic over it it'll last for years... that's >>> what we did back at university, and there was some really nicely done >>> equipment there that was probably well over a decade old, holding up >>> well. (...although there were plenty of hacked-up boxes with Sharpie >>> marker lettering on them too...) >>> >> That's what I did as a kid, for my home-made ham radio gear. However, I >> found it would only hold up to daily abuse if the aluminim was brushed a >> bit and usually I also heated it before spraying, to the point where the >> lettering just barely did not begin to shrivel. On non-brushed anodized >> aluminum it all flaked off in due course. The lettering I used was from >> a company called "Letra-Set", not sure if available in the US. It was >> the professional stuff, otherwise used for shopping displays or >> advertising material. > > Never had trouble with anodizing flaking off. Maybe you got E. German > aluminum. ;-) I think I still have my transmitter and last time I checked > (when we moved - '08) the panel was still in good shape. I used Letra-Set on > that, too, with DataKote (?) sprayed over it. I built the transmitter in '66. It wasn't the anodizing that flaked off but the spray coating lifting from the anodized surface. Worst case where a letter or number was. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: krw on 26 Jul 2010 20:04 On Mon, 26 Jul 2010 16:33:48 -0700, Joerg <invalid(a)invalid.invalid> wrote: >krw(a)att.bizzzzzzzzzzzz wrote: >> On Mon, 26 Jul 2010 12:29:43 -0700, Joerg <invalid(a)invalid.invalid> wrote: >> >>> Joel Koltner wrote: >>>> "John Larkin" <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote in >>>> message news:lthr4610pin79ldpnflqu3kd23p3g7lqgp(a)4ax.com... >>>>> A sheet of kiss-cut peel-off vinyl letters from Flax, the nearby art >>>>> supply store. They'll eventually rub off, so I'll turn it over to >>>>> testing and let them pretty it up. >>>> If you spray some clear acrylic over it it'll last for years... that's >>>> what we did back at university, and there was some really nicely done >>>> equipment there that was probably well over a decade old, holding up >>>> well. (...although there were plenty of hacked-up boxes with Sharpie >>>> marker lettering on them too...) >>>> >>> That's what I did as a kid, for my home-made ham radio gear. However, I >>> found it would only hold up to daily abuse if the aluminim was brushed a >>> bit and usually I also heated it before spraying, to the point where the >>> lettering just barely did not begin to shrivel. On non-brushed anodized >>> aluminum it all flaked off in due course. The lettering I used was from >>> a company called "Letra-Set", not sure if available in the US. It was >>> the professional stuff, otherwise used for shopping displays or >>> advertising material. >> >> Never had trouble with anodizing flaking off. Maybe you got E. German >> aluminum. ;-) I think I still have my transmitter and last time I checked >> (when we moved - '08) the panel was still in good shape. I used Letra-Set on >> that, too, with DataKote (?) sprayed over it. I built the transmitter in '66. > > >It wasn't the anodizing that flaked off but the spray coating lifting >from the anodized surface. Worst case where a letter or number was. Never had that problem with DataKote, unless it was damaged (scratched).
From: Joel Koltner on 26 Jul 2010 20:11 "Joerg" <invalid(a)invalid.invalid> wrote in message news:8b6hfaFmf8U1(a)mid.individual.net... > And under no circumstances would I dip into the brewsky > budget, ever. How does one determine the brewsky budget? Is it a fixed amount per week, a certain percentage of income...? Could the brewsky budget be raided for, e.g., dinner dates with attractive women? :-) (I recall a couple of times I was raided funds fully intended for something else because some girl said, 'yes...') Just curious... :-)
From: Joerg on 26 Jul 2010 20:19 Joel Koltner wrote: > "Joerg" <invalid(a)invalid.invalid> wrote in message > news:8b6hfaFmf8U1(a)mid.individual.net... >> And under no circumstances would I dip into the brewsky >> budget, ever. > > How does one determine the brewsky budget? Is it a fixed amount per > week, a certain percentage of income...? > I don't remember what the average lifetime of a crate was but the kitty was replenished every time it went below 10 bottles or so. > Could the brewsky budget be raided for, e.g., dinner dates with > attractive women? :-) (I recall a couple of times I was raided funds > fully intended for something else because some girl said, 'yes...') > Ahm, guilty :-) [...] -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: Joerg on 26 Jul 2010 20:26
krw(a)att.bizzzzzzzzzzzz wrote: > On Mon, 26 Jul 2010 16:33:48 -0700, Joerg <invalid(a)invalid.invalid> wrote: > >> krw(a)att.bizzzzzzzzzzzz wrote: >>> On Mon, 26 Jul 2010 12:29:43 -0700, Joerg <invalid(a)invalid.invalid> wrote: >>> >>>> Joel Koltner wrote: >>>>> "John Larkin" <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote in >>>>> message news:lthr4610pin79ldpnflqu3kd23p3g7lqgp(a)4ax.com... >>>>>> A sheet of kiss-cut peel-off vinyl letters from Flax, the nearby art >>>>>> supply store. They'll eventually rub off, so I'll turn it over to >>>>>> testing and let them pretty it up. >>>>> If you spray some clear acrylic over it it'll last for years... that's >>>>> what we did back at university, and there was some really nicely done >>>>> equipment there that was probably well over a decade old, holding up >>>>> well. (...although there were plenty of hacked-up boxes with Sharpie >>>>> marker lettering on them too...) >>>>> >>>> That's what I did as a kid, for my home-made ham radio gear. However, I >>>> found it would only hold up to daily abuse if the aluminim was brushed a >>>> bit and usually I also heated it before spraying, to the point where the >>>> lettering just barely did not begin to shrivel. On non-brushed anodized >>>> aluminum it all flaked off in due course. The lettering I used was from >>>> a company called "Letra-Set", not sure if available in the US. It was >>>> the professional stuff, otherwise used for shopping displays or >>>> advertising material. >>> Never had trouble with anodizing flaking off. Maybe you got E. German >>> aluminum. ;-) I think I still have my transmitter and last time I checked >>> (when we moved - '08) the panel was still in good shape. I used Letra-Set on >>> that, too, with DataKote (?) sprayed over it. I built the transmitter in '66. >> >> It wasn't the anodizing that flaked off but the spray coating lifting >>from the anodized surface. Worst case where a letter or number was. > > Never had that problem with DataKote, unless it was damaged (scratched). In Europe there was no DataKote, and I think it's been discontinued here as well. So I had to make do with whatever was in the budget. And that wasn't always much. I remember that I applied the clear coat on my regen receiver from a bottle, using a brush. Afterwards I was a bit disappointed but got used to the uneven look, actually started liking it. Nowadays it's all the rage and called faux painting :-) -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM. |