Editing Commodore Datasette (section)

=== PET, VIC-20, C64/128 ===

There are at least four main models of the 1530/C2N Datassette:

* The original modified [[Sanyo]] M1540A cassette drive, built into the earliest models of PET in 1977. This was a standard shoebox tape recorder with a corner of the case removed and modified electronics; a Commodore PCB was installed internally in place of the Sanyo electronics. To disguise the Sanyo brand, Commodore simply fitted a Commodore badge over the original logo.<ref>{{Cite web |last=Zimmerman |first=Bo |title=cbm-trivia-13.txt |url=https://www.zimmers.net/anonftp/pub/cbm/faq/trivia/cbm-trivia-13.txt}}</ref>
* The second built-in Datassette in the PET 2001: another standard consumer model (sold in some markets as CCE CCT1020) modified with a Commodore PCB. Black cassette lid, five white keys, no tape counter, no SAVE [[light-emitting diode|LED]]<ref>{{cite web|url=https://books.google.com/books?id=Be5xZ1ovVx8C&q=transicorder+ct+1020&pg=PA11|title=Placar Magazine|first=Editora|last=Abril|date=26 October 1973|publisher=Editora Abril|access-date=27 June 2017|via=Google Books}}</ref>
* Black body original-shape model, black cassette lid, five black keys, no tape counter, no SAVE LED
* White body original-shape model, black cassette lid, five black keys, with tape counter, no SAVE LED
* White body new-shape model, silver cassette lid, six black keys, with white tape counter SAVE LED on left side
* White body new-shape model, silver cassette lid, six black keys, with tape counter and a red SAVE LED on the right
* As above but with black pattern and silvery Commodore logo, six black keys, tape counter and a red SAVE LED on right side

The first two external models were made as PET peripherals, and styled after the PET 2001 built-in tape drive. The latter two were styled and marketed for the VIC-20 and C64. All 1530s are compatible with all those computers, as well as the [[Commodore 128|C128]].

In addition to this, some models came with a small hole above the keys, to allow access to the adjustment screw of the tape head [[azimuth#Other uses of the word|azimuth]] position. A small [[screwdriver]] can thus easily be used to affect the adjustment without disassembling the Datassette's chassis.

Confusingly, the Datassette at various times was sold both as the ''C2N DATASETTE UNIT Model 1530'' and as the ''1530 DATASSETTE UNIT Model C2N''. Note the difference in spelling (one ''S'' versus two) used on the original product packaging.<ref>{{cite web|url=http://www.zimmers.net/cbmpics/dtapes.html|title=Commodore Datasettes|author=Bo Zimmerman|work=Commodore Gallery|access-date=20 April 2012}}</ref>

Like Datasette models, the recording format is compatible across computers; the VIC, for example, can read PET cassettes.<ref name="thornburg198104">{{Cite magazine |last=Thornburg |first=David D. |date=April 1981 |title=The Commodore VIC-20: A First Look |url=http://www.atarimagazines.com/compute/issue11/12_1_THE_COMMODORE_VIC-20_A_FIRST_LOOK.php |magazine=Compute! |page=26}}</ref><ref name="butterfield198104">{{Cite magazine |last=Butterfield |first=JIm |author-link=Jim Butterfield |date=April 1981 |title=Advice to PET Owners: How To Be A VIC Expert |url=http://www.atarimagazines.com/compute/issue11/17_1_ADVICE_TO_PET_OWNERS_HOW_TO_BE_A_VIC_EXPERT.php |magazine=Compute! |issue=11 |page=34}}</ref>