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Elf II Bidding oneBay

(8)
Wow, right about the TV ! I just double checked and did indeed say no tape recorder or monitor...Thanx, js John Smith jesmit49@verizon.net ... From:
John Smith
8
posts
Nov 18

1801 Card for my Microtutor found - but there's a catch

(22)
Interesting evaluation, Josh. Although i usually avoid sniping, it is still valid per the eBay rules. The thing to remember is that, as you pointed out, eBay's
Paul Schmidt
22
posts
Nov 18

Cherry keyswitches with caps

(8)
I personally use blue in my primary work and home keyboards because I like the click and I believe it improves my typing speed. -Mark On Fri, Nov 17, 2017 at
Mark Abene
8
posts
Nov 17

New file uploaded to cosmacelf

(541)
Well, it took awhile for the YAHOO forum to get it right. After trying a few more times, my file finally got posted correctly. The first few times, I put up
the-eagle@att.net
541
posts
Nov 17

Latest FPGA-Elf

(11)
thanks Marc. On Wednesday, November 15, 2017, 6:39:14 PM PST, marcpic13@yahoo.com [cosmacelf] wrote:   Hello Marian, The files
Marian Popeanga
11
posts
Nov 15

Sign of the times?

(12)
That is very impressive, 72Mhz, 1 cycle instructions.. wow. For those on the board that aren't familiar with the original 8051, it typically ran at 12Mhz but
joshbensadon
12
posts
Nov 13

New Article on Joyce Weisbecker

(9)
Bill: please rest assured I wasn't offended at all by your first message. I was in total agreement with you in the fact of trying to control a display with the
marcpic13
9
posts
Nov 12

CDP1805 based hand held calculator

(214)
Bill, I use a product called flip-pin that is available from spark fun. The pins are the same dimensions as ICs so you don’t destroy sockets like headers
Jon@kenneke.com
214
posts
Nov 7

Fw: Question: 1802 Cosmac Elf system , help desired...

(18)
... These were the most common formats. But these resistor networks are basically little PC boards -- they could be laid out with just about any circuit and
Lee Hart
18
posts
Nov 6

1802 Membership Card Turned Up to 11 (Okay 12)

(13)
Ian: good thought to use the spare gate as a buffer. I’ll do that. I was connecting direct to pin 39. The saleae analyzer is supposed to have 1-2meg
bill rowe
13
posts
Nov 4

Interesting ratios found overclocking MALAY 1802s

(17)
I had a DropBox account for a while, and it's actually not necessary to install anything to use it (although they certainly want you to). However, I let that
urrossum@att.net
17
posts
Nov 2

COSMAC chips on Ali Express

(26)
Hi Mark. I've never had a problem with UTSource and I'm familiar with the W65C51 problem (I still can't believe WDC has no interest in pulling those defective
mmclaren6502
26
posts
Nov 1

1802 clock generator using ICS525-02

(7)
... They also have a comparator built in that can provide a clock output. The potentiometer you see on most boards sets the comparison level so you adjust duty
David W. Schultz
7
posts
Oct 28

dual port RAM thought

(6)
... There might be an even easier way. They also made "video RAMs", which had a conventional parallel address/data bus, plus a serial "video" bus. The serial
Lee Hart
6
posts
Oct 27

Overclocking the Membership Card

(55)
Myself I've tried the old eprom and counter to get 512x256 and it was very decent looking on a conventional monitor but it needed all of the cpu (early 80s)
ajparent1
55
posts
Oct 27
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