T.R | Title | User | Personal Name | Date | Lines |
---|
2375.1 | which?????? | VIVIAN::S_GOLDSTEIN | Steve G... DTN: 847-5416 | Mon Mar 20 1989 14:35 | 1 |
| Which Issue of ST/Amiga
|
2375.2 | | FORTY2::TATHAM | Nick Tatham @REO | Tue Mar 21 1989 06:20 | 7 |
| > Which Issue of ST/Amiga
It was probably Oct-88 or Nov-88 - I borrowed it so can't find out easily -
I'll see what I can do.
Nick
|
2375.3 | Need help w/ transistor type | RGB::SCOTT | | Wed Sep 12 1990 12:04 | 8 |
|
(Belated) Thanks for posting this circuit. One question - could
you please give a hint as to what type of transistors are used? I don't
recognize the BC number. The info I'm looking for is: NPN or PNP, and
approximate gain.
Rob
|
2375.4 | BC547 revealed | FORTY2::TATHAM | Nick Tatham @REO | Thu Sep 13 1990 18:33 | 20 |
|
My trusty Maplin catalogue lists BC547 as:
Case = TO92a
Type = NPN
V-CEO(max) = 45 V
V-CBO(max) = 50 V
V-EBO(max) = 6 V
Ic(max) = 100 mA
P-TOT(max) = 500 mW
Typ h-FE = 520 @ Ic = 2 ma
Typ f-T = 300 MHz
Price = 10 pence
h-FE is the gain isn't it? It also says that a BC547 is a BC107 in a
plastic case.
Hope this helps,
Nick
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2375.5 | Garden varitey transistor | RGB::SCOTT | | Thu Sep 13 1990 18:55 | 5 |
|
Thanks much! It looks like a trusty 2N2222 will do just fine.
Rob
|
2375.6 | | WELSWS::FINNIS | | Thu Sep 13 1990 22:53 | 10 |
|
Sorry if the first lead was a bum steer ,
Looks like the old note has been revitalised though !!
Anyone Know of a `cheap' MIDI keyboard
- Pete -
|
2375.7 | Casio makes the least expensive MIDI Kbs | RGB::SCOTT | | Fri Sep 14 1990 12:32 | 12 |
| > Anyone Know of a `cheap' MIDI keyboard
I have a Casio MT540 - bought a demo unit for $140. A couple of
months back, the MT240 was on sale at numerous places for $120 or so. That's
about the cheapest MIDI keyboard you can get! Damark also has the next
Casio model up from mine on sale for $199. (Just threw away my catalog,
so I don't have the details).
Also check out the DNEAST::COMMUSIC conference for more MIDI info
than you probably want :-)
Rob
|
2375.8 | | WELSWS::FINNIS | | Sun Sep 16 1990 21:36 | 7 |
|
Thanks I'll give that conference a go.
Unfortunately there seems to be little under 100 Pounds in
the Uk..
-Pete-
|